There are tons of little modifications i've done that im missing but here is my air setup for inflation and for the lockers. I decided to run an ARB compressor for the lockers and then i mounted the york on the AC mount with help from the same guy who welded my axles. He made a pretty sweet mount for it that is also adjustable for the tension on the belt.
The pulley is from Kilby and believe it or not was almost as much as the ARB compressor itself... the pulley after shipping was like 80 and some change i found the ARB compressor from a guy on craigslist brand new for 100 and then the york i found at a pick n pull during a memorial day sale for 25. I bought the hose, fittings, gauges, filters, etc at harbor freight for probably a total of 20-30 dollars. Then 20.00 for the ARB airlines and 15.00 for switches. I still need to clean up the wiring to the cab but under the hood is all good.