The Convention of States isn't about replacing or rewriting the current Constitution, but about amending it.
I've given some thought to Constitutional amendments, and the four I have are as follows:
Tax Reform Amendment
No tax, federal or state, shall ever be withheld from the wages of a worker of any citizen of either.
No property shall be seized for failure to pay taxes until after conviction in a jury trial; the right of the jury to nullify (and thereby forgive) this debt shall never be questioned or denied.
The second amendment is hereby recognized as restricting the power of taxation, both federal and state, therefore no tax (or fine) shall be laid upon munitions or the sale thereof.
The seventh amendment is also hereby recognized, and nothing in this amendment shall restrict the right of a citizen to seek civil redress.
No income tax levied by the federal government, the several States, or any subdivision of either shall ever exceed 10%.
No income tax levied by the federal government, the several States, or any subdivision of either shall ever apply varying rates to those in its jurisdiction.
No retroactive or ex post facto tax (or fee) shall ever be valid.
The congress may not delegate the creation of any tax or fine in any way.
No federal employee, representative, senator, judge, justice or agent shall ever be exempt from any tax, fine, or fee by virtue of their position.
Any federal employee, representative, senator, judge, justice or agent applying, attempting to apply, or otherwise causing the application of an ex post facto or retroactive law shall, upon conviction, be evicted from office and all retirement benefits forfeit.
Senate Reform Amendment
The seventeenth amendment is hereby repealed.
The several states may provide by law the means by which their senators may be removed or replaced.
Fiscal Responsibility Amendment
The power of Congress to regulate the value of the dollar is hereby repealed.
The value of the Dollar shall be one fifteen-hundredth avoirdupois ounce of gold of which impurities do not exceed one part per thousand.
To guard against Congress using its authority over weights and measures to bypass Section I, the ounce in Section II is approximately 28.3495 grams (SI).
The Secretary of the Treasury shall annually report the gold physically in its possession; this report shall be publicly available.
The power of the Congress to assume debt is hereby restricted: the congress shall assume no debt that shall cause the total obligations of the United States to exceed one hundred ten percent of the amount last reported by the Secretary of the Treasury.
Any government agent, officer, judge, justice, employee, representative, or congressman causing gold to be confiscated from a private citizen shall be tried for theft and upon conviction shall:
a. be removed from office (and fired, if an employee),
b. forfeit all pension and retirement benefits,
c. pay all legal costs, and
d. restore to the bereaved twice the amount in controversy.
The federal government shall assume no obligation lacking funding, neither shall it lay such obligation on any of the several States, any subdivision thereof, or any place under the jurisdiction of the United States. All unfunded liabilities heretofore assumed by the United States are void.
The federal government shall make all payments to its employees or the several states in physical gold. Misappropriation, malfeasance and/or misfeasance of funds shall be considered confiscation.
Commerce Clause Amendment
The federal government shall directly subsidize no product or industry whatsoever, saving the promotion the progress of Science and useful Arts.
The federal government shall never prescribe nor proscribe what the Several States teach. Neither the federal government nor the several states shall ever deny the right of parents to teach and instruct their children as they see fit.
The congress may impose tariffs, excise taxes, and customs duties on anything imported or exported, provided that they are applied uniformly and in no manner restrict, subvert, or circumvent the second amendment.
No law may impose prohibitions of any sort on the commerce between the several states due to the item itself.
You are far too easy on them. The power to tax must be removed from the congress. No income tax. No property tax of any kind allowed. State and federal government financed by retail sales tax only. The sales tax rate set by the constitution at no more than say 10%. Congress may request the states authorize emergency taxation. Two thirds or three quarters of the states must approve emergency taxation. Repeal the 17th amendment. Outlaw and phase out transfer payments of all kinds. Elimination of judicial review. And many more. I tend to go further than Mark Levine and others because I do not trust the government at all. And I want them brought to heel. For the next two hundred years at least. You have a number of good ideas. To those of you who believe our constitution is fine as is I say you are correct. Rather it is our people who are not fine and our constitution must be amended to protect our liberty and freedom from these people. As to the government following the amended constitution, they will have no choice. We will strip them of their power, returning it to the states where it rightfully belongs. We will codify the limits of the federal government rather than rely upon the honor and inherent virtue of our elected politicians. They have shown themselves to have little honor or virtue.