Much of the damage to the original Constitution has been self inflicted by the amendments added. On the one hand the amendments added by the Republicans after their victory in the First Democrat-Republican War were needed to mend the original sin of slavery. Those amendments have done their job but unleashed a monstrous growth of Federal power that is now used by collectivists to attack liberty.
If Article V ever happens simply repealing these amendments would go a long way to restoring the Republic.
The 17th Amendment did to federalism what the 13th Amendment did to slavery. Both are long-gone vestiges of our framing era. Tenth Amendment? States rights? Poof, and not only long-gone but neither slavery nor federalism can possibly return without repeal of their respective amendments.
Yes, very good point, an amendment banning baseline budgeting, mandating a balanced budget based always on the gold standard would be nice as well.