91 EFI Harness v. 93 EFI harness Q's

I few years back I picked up a '93 5.0 HO running from a mustang for $340 (complete engine minus the mass air meter & harness).
Last year I picked up a complete EFI set-up from a 91 5.0 HO mustang that was mass air (harness, EEC, upper/lower, A9L, etc.).
Question: 1) Can I use the '91 harness on a '93 if both are 5.0 mass air. EEC will be a A9P, trans will be a C4.
2) C4 to 5.0 requires a kick-down cable that BC Broncos will carry? or is there a factory part I can source from my local Pic-A-Part?

Thanks in advance
Jed

Both harnesses should be virtually identical. There is a difference in the pin 30 jumper on the HEGO harness between manual and auto trans cars. This link will help you figure it out: http://forums.corral.net/forums/showthread.php?t=1094179

BC kickdown and throttle cable are nice.

Thanks Viper