Can anyone suggest a mover? I am 56 years old and have a disability.

Call the disability hotline in your state, and ask this question of them. They know all the local resources

Can you get and rent the truck from u-haul? May be easier to hire neighbors, church people, college kids?

Call 211 for community resources, if you have that info hotline in your area.

Suggest you buy boxes now, start packing, sealing them up. Are you able to pack with your disability?
A neighbor was packed up by her caregiver. Other neighbors drove the rented truck, very very last minute! People can't help if they don't know there is a real need.