You do have PATS to deal with or Delete, I think 2000 explorer used separate PATS module above glove box, this unit grounded the starter relay on the engine fuse box if Key passed the test, and also sent the "OK to start" code to PCM
So even if you have PATS deleted from PCM you would still need to find and ground the starter relay wire full time to get starter to work
Also the 1994 fuel system is 30psi Return type, 2000 needs 55psi
The Ranger 1998 and up Rangers used Returnless fuel system that uses a fuel pressure regulator(FPR) on/in the fuel pump assembly in the gas tank and a 3 port fuel filter
The 3rd port on filter runs back to gas tank's FPR, so its not actually a returnless system, lol
I think the 1998-2000 fuel pump assemblies fit in the 1994 gas tanks, but you would need the shorter return line from new 3 port filter to top of gas tank
But not sure on this