Of course, I expected some rust. The ceilings were absolutely rust-free, the walls looked great, and under the bus was in good shape with some surface rust. However, we found rust once the floor was exposed. In particular, the wheel wells had pretty significant rust and the back corners as well.
Thanks to my friend, Lucie, we were able to treat, remove, and patch the rust! And just for good measure, I caulked the seams.
Last, my favourite part was cleaning everything up, sealing holes, and painting white rust-o-leum! Now it feels like a blank slate to be filled.