Mine's an '01 IH/Bluebird short bus. T444e engine, 5 speed manual, 5.38 rear gears, air brakes. Has a wheelchair lift in the rear. I still have some work to do to it such as:
Swap rear gears. Debating something around the 3.73 or 3.91 range.
Reprogram computer for new gears, other programming changes, enable cruise.
Paint/body work. The yellow needs to go. White roof, not sure about the rest.
Lower entry step rusted out/needs replaced.
Add trailer hitch.
Add audio, cigarette lighter/power outlets.
Remove old seats, rubber floor, plywood. Remediate floor as needed. Add new flooring (carpet maybe?). Add replacement seats.