"Were you able to put the wheelchair on the lift itself or did he stand on the platform? Try to figure out something for my wife."
At first I used a Mechanics chair for him to sit on while the lift went up and down. The mechanics chair allowed me to roll him inside the RV and then transfer him to the wheelchair or couch.
Eventually, I enlarged the platform a little and was able to use the wheelchair on the lift.
Our fifth wheel floor from the ground was too high but another option is to use a Hoyer Patient Lift. It allows the patient to be lifted in or out of a wheelchair in a sling. They can be transferred to a bed, vehicle or the wheelchair inside the RV provided the floor of the RV isn't too high. I used the Hoyer Lift to get him in the truck.
We found the Hoyer Lift on Craigslist for $300.