A set of stickers and a new seat and you're in business
105/125 is my favorite because of how they look, and yours is pretty
darn good there.
The technical library on this sight is quite nice. Give it a try.
By the way your snapper is a lawn tractor and your cub is a garden tractor

You even have a rear lift and the gearbox for a tiller there! Bonus!
But you are missing a couple of pieces that goes below the seat at the rear, it bolts to
both fenders, and a small thin piece of sheet metal that bolts to the rear cover. PO probably took them off to put
on the rear lift. See if they are around yet, if not no biggie you can pick them up at one
of the sponsors on the top of the page