Here is a good core t18 ford 4 speed manual I pulled from a 2wd truck I made a trailer out of.  Should fit 70s or early 80s Ford pickups, or others if you are rigging it up.  I do not know the history of the transmission, but judging by the blown up engine, the transmission was not the reason the truck was sold.  Shifter moves and shafts turn.  I would consider this a core and at the very least it would need seals and an inspection before use.  Make an offer otherwise I will scrap it.  Thanks