Jim RVSafety - Have you looked at EBAY today ???

[RTS/Daytona]

http://cgi.ebay.com/ebaymotors/DETROIT-DIESEL-SERIES-60-USED-DIESEL-ENGINE_W0QQitemZ370240870482QQcmdZViewItemQQptZMotors_Car_Truck_Parts_Accessories?hash=item5634135852&_trksid=p4506.c0.m245
or
Item number: 370240870482


http://cgi.ebay.com/ebaymotors/3-4-Detroit-Diesel-Reliablit-Series-60-Eng-Freightliner_W0QQitemZ160353650759QQcmdZViewItemQQptZMotors_Car_Truck_Parts_Accessories?hash=item2555d28847&_trksid=p4506.c0.m245
or
Item number: 160353650759

[Airbag]

Wow that's cheap! They won't last long at those prices. I wonder if it would work in a MC5? How many ponys?

[luvrbus]

not a good  price on a absolute ddec11 series 60 11.1 engine no demand for that engine not enough hp and had other problems went out of production several years ago and were replaced with 12.7 engine.
I have saw those for 1500 bucks fwiw    good luck