Donor Explorer/Mountaineer V8 is probably the simplest way to go, BUT..............
'96/'97 models don't have PATS system, which is good, one less failure point.
But these also have the 40psi fuel system with return line
'99 and up have 65psi system, like your 2002, and no return line.
So if you get a donor vehicle, '99 and up, make sure you get a working PATS key with it.
You can transfer PATS module(above glove box) with V8 computer to your Ranger, and switch ignition lock cylinder.
The PATS module and Computer are a "matched set", they can't be used separately, only a Ford Dealer can "re-match" a Pats module with a Computer.
Most locksmiths can add PATS keys to Module/Computer but system must be installed and able to power up to do this.
You need to use E-fans because of longer engine.
And a remote oil filter housing usually.
Last edited by RonD; 12-11-2014 at 09:01 AM.