I worked with a gentlemen who was a quad and had the same situation as you as far as physical limitations. For his sticks we got some rubber things from an archery shop that made the ends of the sticks quite a bit larger than normal. This assisted him in holding the sticks. He also had a neck strap and a radio tray that we had adjusted for him to make the radio feel comfortable while he was flying the plane. He flew gas engines and my son and I always helped with getting it started and on the taxiway. It took a few months of buddy box, but he soloed it without assistance from the buddy box. Because he was prone to siezures we always had him on a buddy box just in case. He came to our club field and all members were more than willing to help in any manner needed. In your conversation's with the club that you are considering joining, you will need to make sure that the field has accomadations for your chair. Our club made exceptions for him as our pit area is gravel and our taxiway and runways are asphalt. He was allowed to use the taxiway as a pilots station. I would be happy to send you pictures of the radio if you think that this is an option that might work for you. Good Luck, Dave