thanks for the info, the link you provided looks about like what I need.
Good news today, I recieved my new gloves for my wheelchair. They are fingerless but have an enclosed thumb and very thick padding on the palm.
Much better than the bicycle gloves I was using. Hopefully some of the callous formation on my thumbs will diminish and I might get some sensitivity back in the thumbs at least.

I also tried to make a hoist for my Wheelchair to get it into the back. It works but is almost more work than should be necessary. the access cab has a latch on the roof behind the driver seat. I had some rope cut and picked up rope hoist/locking mechanisms. They have a little too much friction to be effective, but it has pointed me in the right direction. I think a simple pulley will do the trick. It only needs to lift the chair about 2 feet and I need to be able to use it when sitting on the edge of the door before I transfer to the dirvers seat. It was relatively inexpensive, parts cost me about $8.