There's a number of posts on here showing the eas system used for tyre inflation, air ratchets etc fed from the tank and either the stock eas compressor or more HD compressor to refill. There's also a couple where rock sliders have been designed to provide additional air storage.
I think there's also a video clip or two on here.
Have a search.
I think there's also a video clip or two on here.
Have a search.