I, too would suggest seriously looking at the Power Trac line of tractors.
Power Trac products
Here's why...
They are built in Tazewell, WV. They only sell factory direct. You can talk to the people that make them. They have done custom work in the past. Read on as to why this is important...
The tractor is low to the ground, very stable on slopes, easy to get in and out of from either side. They are hydraulically articulated, meaning they bend in the middle. They can get in and out of tight places much better than a conventional tractor. All of the implements are out front where you can see them. Mower,
FEL, brush hog, tiller, snow blower, everything is out front. The quick attach allows you to change non-powered implements in 15 seconds without getting off of the seat. Powered implements are driven by hydraulics and only require hoses to be hooked up.
Here's the part that I think would really help an amputee... the only foot controls are a treadle with the forward pedal on the right and the reverse pedal on the left. That treadle is just a hydraulic valve. I'll bet that if you talked to the folks at Power Trac they could put a hand operated valve on the left side of the steering wheel to control direction instead of the treadle pedal. If not, a long lever could easily be made to fit the current treadle pedal for hand control of direction. Since it is hydraulically driven, no brakes are needed. They aren't even available on the smaller units.
Follow that link I gave above and check them out. Also, click on my little animated tractor in my signature and that will take you to my website where there are pictures and many videos of my Power Trac at work.
Good luck in your search.
