Buying a 5.7 hemi engine

http://www.modernmuscleperformance.com/products/hemi-efi-conversions-resto-mods

these guys are a sponsored FABO dealer maybe they can help you decide what to get and point you in right direction. I have seen great deals from wrecked cars with those hemis with all electronics included for cheap but there is a lot involved with installation so give these guys a call they might be able to help.