I'm quite sure-with all of the much newer machines out there, for sale, that i would certainly not invest $750 in that old machine. Kind of makes me think of polishing up a dead turtle, and selling him for big bucks!
New parts, and used parts, are probably no longer avail able for that old tractor. That, and the years of use, would make me look around for something much newer!
Talk is cheap--performance isn't! Yeah, it is an antique, but antique lawn tractors don't bring no $750. Heck, take the cash and go buy a much newer one. That old thing will take ya broke buying parts for it--if you can even find parts for it! JMHO Rusty J.