If it would be possible to make a list like this into click-bait that every visitor to the site couldn't help but click on, it would be huge.
I will triumph with my bus, but boy do I wish I'd known more while shopping.
Many people have voiced concerns with accessibility in van-base busses when drivetrain maintenance is required. Personally, I've had no problems with this yet, but I am worried about it. I'm not the kind of guy who likes to let shops service my vehicles, and in this case I think I may have to, we'll see.
I will say that the aforementioned gearing limits me to about 55mph. I don't find this particularly distressing, but I know some might. I've heard that changing the gearing in the rear axle will help, but I don't have plans to do so.
It also seems prudent to mention that the rust in my bus, while somewhat formidable, is not distressing. I'll have to rebuild the floor in the next few years, but it should be relatively easy, given that the rusty bits are all aftermarket conversion parts. The important spots to check for rust in van base busses are: the chassis, and the cab (aka all the Ford parts, in my case). The rest (the aftermarket part) of the bus is easy to cut up and/or replace, as long as you're not a wimp. I'll stress that my bus is a VAN-BASE Ford, I have no authority on full size busses, especially in this regard.