Find a buddy that has one of those cheap compressors from Canadian tire that has piled up. Peel the compressor off of the tank and mount it under your truck somewhere it won’t get banged up too bad. From there mount your 12V compressor either under the hood or behind the back seat (they don’t make a lot of noise) and run the hot line to the tank. Plumb all of your accessories into the tank: air bag control, Quick coupler for air hose. Just make sure you maintain the PSV and the automatic shut off switch so you don’t blow the whole works up.