Need to make a decision fast 5.7/6.1/340

Jeep 5.7 Hemi manifolds - used $200
Hotwire Auto wiring - $900 with a 727 trans
Hotwire Auto used computer - programmed $300
Mancini Racing motor mounts - $150 or build own which you will probably do
Get a Diablosport Intune for any computer tune modifications for when you modify the engine
Plus the price of buying a Hemi