We use scrap, and clay we consider a sideproduct from the entire operation. Feels nice to not need to dig/quarry anymore, Scrapboxes kind of gives all the basic supplies needed (with the forestryfarms and centrifuges). Got everything from dirt to diamonds. Only part not really automated yet is the iridiumprocess. For that we just need to hook up our UUM production and its all good to go. Who needs RP and EE, everything is allready avalible ingame