This advice is so true I’m in a wheelchair and definitely NEED to plan every detail down to the Nth degree. I’m lucky as I have a travel agent who does all my overseas flight and hotel bookings, of course she listens to me (she’d be a fool not to 😀) but I have never had a dud experience in all 16 years of me being in a wheelchair. If you would like her details (and are in the greater London area) I’ll happily pass them on to you