Wilson, an easy mod to help with the belts is swap out the current super short receptacle for a longer one. They are available from seat belt suppliers in various lengths. The ones I fitted are about 18cm long, and make it so much easier to 'buckle up'. I think I've posted photos somewhere here on the forum. I bought mine in the U.S. but there are British suppliers, at least, that sell similar.
https://www.seatbeltplanet.com/images/F198645978
