Often the first step (and a pretty satisfying one!) is to remove all those seats!
There are a few different techniques, so just use what works for you! Possible tools you might need and will want to have on hand:
- Impact wrench (a good battery one with an extra battery or two, or an air-powered one if you've got a good air compressor)
- Ratchet set with appropriate sockets and extensions
If you're lucky (like I was) you can zip the bolts off and remove the seats in a few hours (I had no nuts on the bottom of the bus). If you're unlucky, and end up having to cut off all the bolts, it could be a longer process, but still doable in a day or two at the most.
Techniques to try:
1. Hit the bolts with the impact wrench first and see if that works
2. If the bolts spin, and you can't get them out, might need to have someone under the bus with a ratchet holding the nut
3. If it's not working (or too slow) break out the grinder and cut the bolt heads off. Use the pry bar to pop it off if necessary.
Disposing of seats
You might be saving some of the seats to use in your build. Great! You can flip one of the seats from the opposite side of the bus around, and face it the other way to make a dinette set (bus seats only have legs on the aisle side, they bolt to the chair rail on the wall side...except for some seats in an emergency exit row if your bus has one of those).
Have dreams of selling your seats on craigslist? Although a few people get lucky, for the most part you're gonna have to just junk your seats, or even pay to dispose of them. Although a few people have found some creative ways of using parts of the seats (re-purposing the metal into supports for a roof rack for instance) for the most part, there's not a whole lot you can do with old school bus seats.