My father had ms and I used to drive his van all the time using the hand controls. This was an automatic though.
Here's a link to the hamb thread. I don't think he's made it happen yet but 2 heads are better then one.
http://www.jalopyjournal.com/forum/s...+hand+controls
Join the hamb and contact the guy who started the thread. Dollars to doughnuts he'll probably be thrilled to help.
good luck