Yes I have a couple friend who can get me into the automotive dealer auctions I'm looking into to see if they can get me in a big truck auction or maybe the way to go is to find a fleet that is retiring the 2012 VNM 630's.
Spoke with D&D Truck Center in OKC today, they said $7-9k for the conversion but wouldn't guarantee the work if I have any problems at weigh scales so I would have to do my research prior. They also have used boxes for $2000-3500 and can mount for extra $500.