Talk to your selling dealer about this. He should be able to arrange a disk brake install on your new Big Country through MorRyde in Elkhart, before they tow it out to you. When I was at MorRyde for my disk brake install, I saw a few brand new units towed there by the RV transport companies for upgrades. If you can do this, I would think long and hard about getting independent suspension, too, and get rid of the springs, shackles, equalizers and bushings and their need for continuing maintenance and their wear and tear.