Just to update my situation, I ended up ordering a used engine on eBay (for way too much, due to the reason that there was a "guarantee" and "inspection"... had I known how they handled this and how absurdly long it took to arrive, I would have pulled one from the junkyard and refreshed the whole thing), and come to find out I had to replace the rear timing chain cassette anyway. The customer service was awful, and they didn't want to pay for parts unless I either sent back the engine (which was already on a stand) or he sent be an eBay guide. Complete BS.
I got a kit from Ford for the rear chain, it was actually surprisingly easy to change. The front components were all in really good shape, so I left them alone. I also replaced both tensioners, also with Ford parts.
Truck runs great now, only problem is I didn't read enough on here before installing a Fel-Pro rear crank seal. Now tomorrow I'm planning on dropping the transmission to replace it with a Ford seal and sleeve.