http://www.constitutionparty.com/party_platform.php
In actuality, the one true party standing for what would be the Constitution's intent would probably be the Libertarians, given their anti-any government bent
Actually, I don't think that's true. The Constitution was primarily a limit on the FEDERAL government. The states were left to do pretty much as they wanted, and Libertarians do not like that. I see a lot of libertarians that support decisions like Roe and Lawrence v. Texas because it imposes a made up constitutional standard on the STATES. Overruling Roe and Lawrence would just send the question back to the states--a results many libertarians do not want. Libertarians have a view of the nature of government that is, in many ways, at odds with our consitutional scheme and in others, consistent.
Look, I have a lot of libertarian views and impulses, but the Libertarian Party is off the wall on a number of important issues, such as open borders, for one (on which it's essentially in agreement with both the Republicans and Democrats.)
The party that is standing for the Oirginal Intent of the Founders is the Constitution Party.