63 year old Troy-Bilt owner here.
Most recently picked up a mid-70's Horse at an estate sale for $100. Stuck a HF Predator engine on it so I could till until I can get an adapter plate made for my Honda GX270.
Also have my dad's early 80's Horse in pieces to rebuild. It was his second Horse after wearing out his first, which I dropped off at the Troy-Bilt factory in '79 to get refurbished for my uncle. Got a nice tour of the factory

Then I also have a Pony I traded an air compressor for, but it needs a new brass gear.
I also have my dad's IH Super C with a quick hitch disk plow.
Cheers,
Tom