Puzzi!!! No chance would I ever clean any customers items with that!! You'll look like a gypsy aswell as doing a bad job.
Seriously, you'll give yourself a bad name mate.
Look on ebay or on here for a second hand airflex or even a steampro.
If you buy a new machine from a suppliars, most will offer a free training course. I.e. CleanSmart.com