Given that our freedom now depends entirely on what the Supreme Court says the Constitution means, as opposed to what the Constitution says, the very first new amendment we need is to elect all federal judges. So my first proposal is an amendment stating:
All federal judicial offices shall be elective on such terms and conditions as Congress may determine. Pension entitlements of existing judges shall not be disturbed.
To make calling such a convention attractive to the state legislatures, we should propose a Constitutional amendment eliminating Congress' ability to impose unfunded mandates upon the States. There are a variety of ways to do this, but sticking the federal government for the full cost of the states' compliance with federal law will free up immense amounts of state budgets for legislatures to devote to more deserving purposes, such as to grateful contractors who will share with deserving legislators.
And we need other amendments, such as a Presidential line item veto over appropriations, limiting Senators to a single term givne that they haven't passed a budget in years, possibly term limits for Congressmen, etc.
And I'd consider taking the decision as to whether a given act of Congress is constitutional away from the federal courts and giving it to state legislatures. We'd have rocks in our head to trust federal judges to protect our freedom anymore, even if they become elective.
ping