Re: mounting generator inside bus?
several pictures on busconversions.com site, and several internet pictures, simple ones are made like a battery slide out for truck battery banks. that is how my onan is mounted, on greased rails mostly because i do not move it very often at all unless a major service, and can change the oil in its own compartment, and change points as well without moving it.
also keep in mind that if you have a generator muffler that is not part of the unit, it must either slide out as well, or as i did it, i can loosen the exhaust clamp and swing the muffler and tail pipe as i pull the genset out.
Jesus Christ... Conversion in progress.