You've found South Side Sandblasting (neighbors with, but not directly associated South Side Red-E-Mix). I have been blasting for about 5 years now. I have experience with everything from bar stools to entire cars.
I use -30 sand from the Kaw river that has been graded and dried. It makes a great surface to paint. It is the finest sand available. Coarser sand removes rust quicker, but leaves deeper pits and warps thin metal easier.
I charge $50 an hour. If you check around, you'll find this quite reasonable. I go by the hour meter on my compressor, so I don't charge unless it's running.
I offer portable blasting around the Warrensburg area for a higher fee.
If you need blasting done, contact me - firstname.lastname@example.org
some videos of interest...
unloading 25 tons of sand-
blasting a tractor bucket-