Hi Dan, I used to own a 91 Toyota Winnebago Warrior. It was my first RV and perfect for my husband and I at the time. We were the second owners. The first owner would say it sleeps 4 adults sober and 5 drunk. We easily slept 4 adults often in it for weekend trips. It had great mileage and drove easily. We didn't have to work on it much since we bought it in 94. The only thing we ended up fixing was the heater. Sorry I can't tell you anything else about the logistics of working on it but I believe that your tools will be different, one metric and the other standard between the Toyota and Ford. I guess another point to consider would be the availability of parts.
