I have, and I even know an excellent bus mechanic that restores old buses to there original glory.
The downside to buses as I see it is they are a pain to work on and the folks that know how are few and far between.
A truck tractor on the other hand is readily repairable anywhere in the country both at 24 hour service centers and mobile mechanics. If you suffer a catastrophic failure of some sort labor to repair is much less and as an additional option you can rent a tractor or just buy another.
A trailer is a blank slate to convert, a bus has it's limits trying to put tanks in baggage bins and run the plumbing and electrical. Adding insulation is also trickier on a bus.
In order to have the option of a car along for the ride, with a bus this would require towing, with the trailer it will sit inside.
On a trailer things like brake lines and wiring is easy to diagnose with a bus not so easy.
There are lots of suitable tractors on the market but good buses are a lot trickier to find.
It is easier to install doors and windows in a trailer than it is to deal with removing the bus windows and then having to deal with the seals and gaskets.
With the big hole in the aft end, installing the appliances and cabinetry is a lot easier on a trailer than than trying to stuff it in through the door on a bus.
In the event of collision damage, all the panels on a semi trailer are flat and somewhat generic. For a bus the outer panels are unique and difficult to find replacements in good shape.
Thanks for your comments.
