Very cool setups guys. Les, I see you used a Kenmore/Cleva PN on your setup.
I have a Kenmore Cleanmore carpet cleaner/wet dry vac from estate sale. Later they sold a power nozzle for them, so I got one off eBay. It has a long grounded power cord which straps to the hose and plugs into the outlet for the pump and then you set the pump switch to high to turn on the PN or off to shut off the brush.
Like most shop vac style vacuums it has good airflow so it cleans carpets well. The power nozzle does not have a height adjustment of any sort that I can tell but it does have a headlight.