use the lovely fire engine machine, but market yourself as LM cleaning, you can charge just as much as dry fusion, after all the public out there do not know what dry fusion cleaning is....
They want to know..
will my carpets be clean...
how long will it take
how long will they be wet
how much
become a LM cleaner use a microsplitter or an encapsulation chemical like fusion clean, use microfibre pads
switch on the heater on your fire engine when you start and wizz through the carpets.
I ONLY LM clean, and you can go very quickly and advertise the low moisture bit, the punters love the idea that you will not flush thousands and thousands of gallons of water through their lovely expensive carpet right carpets. (poetic licence)