Wow.. neat stuff.
Even i fthe engine is siezed, and crank and cam are ruined.. if the journals are ok, the block and head may be salvageable, the block has replacable liners. Also, baring problems, the diffy chunkm diffy center casting, axle trumpets, axles, tranny casting ( maybee not gears ), steering box ( maybee ) and perhaps the rear wheel centers.. maybee a front wheel center. Dash, pto shaft and possibly the pump, and deffinately the hyd top cover. Those casting make up some good "hard' parts that are in need. Someone is always busting a tranny or diffy casting.. etc.
Cast oil pan and even front axle should be in good condition. Carb may be good for a rebuild. Governor may be ok,, governor cover possibly, and if front mount distribuitor.. may be salvageable.. Rods, if not rusty. Possibly the air cleaner, depending on condition, as well as battery box..
Soundguy