99% of the ( stinger ) wheel lifts will not reach under the back of a bus. They won't reach without extreme frustration
to the frobt tires either. ( frustration meaning the price goes up if the guy has to get out the 450 lb extensions.)
Brian, buy an air compressor like one of the dewalt minis that does 150 psi. or rig up an air hookup to the bus so that you can get air in a tire that leaks down.
I don't know what kind of road service you have but sounds like they have no concept of how to get things done.
Call your local truck tire place, Like a goodyear, firestone or independent dealer. they all have roadside service and most only have roadside even in thier own backyards. all on a pickup truck...
And, Not to burst your bubble, But... Now that you own a bus... You will need to learn how to get stuff done and not call some weenie who doesn't have a clue asking for help. I take my bus to have tires fixed, Or have the truck come to me for the extra $25.00 charge. Is $25 to $100 extra worth killing yourself over?
Not meant to be rude, sorry....