I have a 86 F150 4x4 that I am looking to sell, could probably let it go for under $1000. I also have a spare Dana 44 HD from a 77-ish F250 and Dana 70 rear axle from a 78 F350 if you wanted a solid axle in place of the TTB. Keep in mind that the D44 HD is originally from a leaf sprung truck, so it will take some fabwork to hook up to the TTB front.

The F150 has the 8.8 rear, Dana 44 TTB front, 300 I6, NP435 tranny and BW1345 t-case. If you don't want the engine, I could knock a couple bucks off the price.