pto shafts are about 120$
the big question is the stump jumper.
if the stump jumper is bent.. or the output shaft is bent.. I'd look for a use dmower. i get them on craigslist for 0-250$ all day here.
the a-frame and deck is an easy repair.
that jd mower is spendy and HEAVY takes GOOD hyds to move a HEAVY mower.
that jd mower costs as much as a average N!!!!