If you're going to buy reman, why not buy a reman Explorer engine?
Yeah, you will need to buy accessories, but you would likely not reuse a water pump, distributor or xxx anyhow.
I don't know how much a timing case is for one of those things.
Mine is $70-90.
Jim,
Lil'Red is a '87 F250 HD, 4.10's, 1356 4x4, Zf-5, 3G, PMGR, Saginaw PS, desmogged with a Holley 80508 and Performer intake.
Too much other stuff to mention.