new here, 64 valiant 512 swap!

hey guys im new here. recently i bought a 64 valiant that was restored in 2006. my plans are to put a cage in it, and stuff a 512 into the tiny engine bay. any tips or suggestions on putting this motor into the car please let me know! was wondering if anyone has had luck with the schumacher motor mounts (http://www.engine-swaps.com/Pages/InstructionPages/A63BRB.html) or if i should stick with a motor plate? thanks