I had Precision Bodyline do my Mega Cab Long Bed Conversion in March of 2010. It was about $6500 including the take off dually bed painted to match, spray in liner, B and W turn over ball set up. I added air bags for a few hundred more. They do incredible work. It was 3 full days of work, the welding is the best I have seen, I have had no problems at all. I brought back my short bed dually and just sold it. I put pics on this site months ago, I can do it again if anyone wants.