I have been saving a cool bucket seat that I picked up at least ten years ago so I cut off the mounting brackets welded on some angle iron and steel tube, and welded the whole assembly to the torque tube. The front to back adjustment was retained, so big and little people can drive the machine. The handle bars tube is pretty big, so rather than looking for some custom hand grips, I made my own. Some 1/8" buna -n closed cell foam with adhesive back was applied to the bare steel. The foam was carefully wrapped with black electrical tape, which was then painted with PVC pipe cement to hold it together.I covered the tape with a nylon braid to give some grip, and tucked the end into the tube end and tapped in a wooden plug to hold things together.Feels nice.