In the fall of 2014, I bought a 1982 International/Bluebird S1800 school bus for $2000. It has an International DT466, Allison MT643, and best of all, only 138,000 miles. It was originally a school bus serving Moffat county in southern Colorado before becoming the youth activities bus for the Queen of Peace Catholic Parish in Denver, CO.
The bus was gutted, the roof raised by 20″, and new, double pane insulated RV windows installed. The bus has 3″ of spray foam in the walls and ceilings, with 3″ of rigid foam board in the floor. There are 1865 watts of solar power on the roof, a composting toilet, 46 gallon freshwater tank, 20 gallon electric hot water heater, solar powered air conditioning, queen murphy bed that folds into a wall to reveal a workdesk, and custom reclaimed kitchen/bath cabinetry througout.
It is my personal home and we have lived through sub-zero Colorado winters and sweltering 100 degree summer days. This is the bus that proved for me that bus life could be had without any compromises.