47 views and no replies...So i will have a go. No offense but if you are serious, You may have discouraged a few from contributing by the "ive got 20 grands worth of truckmount and 7 grands worth of transporter sitting around not doing much.
I think most of the wcs would go for the middle ground. You sound like you should have a few grand in the budget so I would advise a company that fits a complete system for 2 or 3 grand. there are 3 or 4 companys that do this.
You can spend £500 and go diy or £10k from a so called market leader. Unlike carpet cleaners all these systems use the same power pumps so as a cc you can appreciate there is not much in it.
Generally the principles are the same in cc as in wc. hot water... better......truckmount...better.........easily availabe spare parts....better
Whatever system you get dont bother with their poles. Call the A man at GPS and tell him you want an SLX

BVC.