I'm doing a 5.0HO/AOD swap myself and am finding some good info at the following sites:
EFI 5.0 install
Mustang FAQ - Wiring & Engine Info
Fuel Injection Technical Library » Home
and 665spd's build thread https://forums.vintage-mustang.com/b...5-0-resto.html
The new Aeromotive EFI Gen II Stealth tank uses in-tank pump and has the attachments in the stock location.
I think some people have been able to use the foxbody gas pedals by putting a spacer under it so it has enough travel.