Hi RIck,
Welcome to Overland Bound. Awesome rig.
Had a VIAIR 400P for some years. First portable and then - because I did not like to unpack and pack the thing everytime I need it - I fitted it permanetly. Never had to complain, good gear. It is still in service with a friend of mine. Now I run a ARB CKMA12 which came with the lockers anyway. The compressor supplies the front and rear lockers with air. In addition I have installed two standard workshop air supplies, a 2.5 gallons/ 9.5 liter air pressure tank and a mechanical manometer. Run the ARB CKMA12 since approx. 8 years now. Reliable and comparable small in size.
With your large tires, I would take a large compressor which decent duty cycle, perhaps one of the big Viair or the double compressor from ARB and probably also a pressure tank. Also take a look at the various options on the market with inflation/deflation systems that inflate/deflate more than one tire at the same time.
I think there will be more recommendations here soon and the guys with the big tires will surely have the right recommendation for you.
You will find plenty of information regarding air compressor setups in these forums. For example here:
Hi All, I currently have a thunder compressor in the tray however due to its size I am removing it over the weekend. Would like to know the OB community take on option A TJM and option B ARB single tank. Happy to get ideas on other brands, only real requirement is small form factor and can bolt...
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Bjoern