I'm not sure, I've got a fair amount of room from front to back. It definitely won't come out as easily as the other side. But I'm thinking if I can get the front of the toyhauler raised high enough I may be able to angle it toward the back inside and pull it out through the bottom.
Pulling the generator looks to be a massive undertaking, and the thing weighs around 300 lbs., so it won't be a simple matter of just lifting it out. Plus unhooking all the wires, and pulling the fuel lines. I'm going to have to crawl up in there and do some serious looking before I take any definite steps.
I'm also in the process of checking with a couple places to see what it would cost to have this done. Probably prohibitively expensive.