Prochem 100A

Anyone know anything about these machines? I am new to the carpet cleaning industry, looking to buy my first TM and get a decent rig to start out. A friend of the family has a 1988 GMC Van with a Prochem 100A which he is wanting to sell for $10,000. The includes all training and assistance that I may ever need, as well as some clientel which he as referred. I have used the machine and it seems to run fine and such, however, I don't want something that is just going to drop out after a few months either. Currently, my market will be primarily residential with some occasional light commercial work (retaurants, hotel rooms, etc.) Thanks.