2/3 of states are needed to call the conventions. Just make sure the 17 most liberal states in the union are not included in the ones calling for the convention. Don't allow delegates from those same states in the convention. Then have any amendments ratified by state conventions, rather than the legislatures, so that there will be some hope in Hell of getting ratification in 38 states.
Wait a minute, I think you actually need 34 states to call, so exclude the 16 most liberal ones . . .
You realize that of those 17 states you exclude, five will be needed to ratify your amendments? Good luck with that.