CoBoz- are you dealing with Ketlesens (Lance dealer) in Denver?
I have never purchased an RV from them, but their customer service in the Parts Department that I have experienced is great. I would tend to think that their sales might be equally as good.
(I also think you might be pushing the limits of a SRW too.)
Sold the TC, previous owner of 2 NorthStar pop-ups & 2 Northstar Arrows...still have the truck:
2005 Dodge 3500 SRW, Qcab long bed, NV-6500, diesel, 4WD, Helwig, 9000XL,
Nitto 285/70/17 Terra Grapplers, Honda eu3000Is, custom overload spring perch spacers.