I have access to a 185 CFM tow behind compressor with a Yanmar diesel engine in decent shape. It is a nice comapct unit that could possibly be mounted on a 3/4 ton pick up. It would work great for air knife/air spade work. I'll try to get some pics and more details. Asking price is $3000. PM me if interested. I would buy it if I could afford it, but there are other toys I want/need first.