The problem with the tire was two nails. One punctured the tire and the other did not. $35 for the repair.
I am taking the bus to C & J Bus Repair in the morning to have the overheating and such looked at. Had I known what I do now, I may not have purchased this bus. While fundamentally sound, there are a few big problems and a lot of smaller annoying issues with it. A few thousand in repairs isn't going to break the bank, but could have bought a lot of fuel.
I'm planning to learn how to do some of the stuff like brakes myself or with help of a friend.
Having never driven a bus before, I really didn't know what to expect so a lot of things that would have been obvious to an experienced driver slipped by me. As the miles went by, I started to find all these things wrong.