Thanks for the extra info.
I was budgeting about $35-$40k for the trailer (used) - New MSRP is around $80k but you can buy them for around $60k and the floorplan has been around for since 2010 so I think I can probably find one for $35k (I've seen 2012s for low 40s asking).
I've looked a bit online in my area and I think if I take my time, I might be able to find a truck in my budget. While many are more, it looks like there are 01-04 3500 duallies for under $10k but obviously the condition varies so ...
Thanks again
