Not sure what it is you are looking for
A portable 12Vdc unit
A portable 120AC unit?
A Hardwired / plumbed unit with outboard tank?
I installed a Viair 150psi 12Vdc system with a 5 gallon tank bolted to the frame rail and plumbed with three outlets each with their own regulator and guage. This setup has worked GREAT for us. Might be something to consider.
Blow clean; the steps, dog hair from the rugs, inflate float tubes, clean the boat, etc....
It gets used way more often that you might think - no need to run the generator to get air - 25amp 12Vdc draw when under load - not a big deal when the solar array can supply over 40amps
Yes it easily airs up the RV tires and boat trailer tires