I had seen those myself, for the price that is being asked I would just go by a new 12,000 lb. electric Warn winch and be done with it and still have money left over for gas to go wheeling. Yes, many parts are missing, its a bit out of control.
Found a couple of split case PTO already (they are around contra to what some say) but the conditions were very questionable, one looked as it was under salt water for years and they wanted $500, plus shipping, you got to be mad or desperate to pay for crap. Another had a case but was in parts (?), wanted $450, he should be wearing a mask and have a gun for asking that price. Most all have be without matching linkage.
I have been planning for the build and parts needed, shims, shear pin, new cable, bearing hangers, shafts, yokes, nuts bolts, linkage, shift lock plate, lots of little things and its cost add up fast.
Yes the corroded G/B mentioned was out of a FJ60, would you know if the later FJ61 is a possible for a case and shafts? Early 70 series, did not know that, thanks.
Will keep looking but will not pay a crazy price as seen on eBay, we have some honest sellers on this site.
Thanks much