Are you anywhere close to New Braunfels? These guys look like they have or could order just about any Cargo Craft made however you wanted it.
https://www.trophytrailerstx.com/inventory.aspx?cursort=asc&mk=CARGO%20CRAFTI've got one, I custom ordered mine from a local Georgia dealer, chose an Expedition, then selected leaf spring axles for extra ground clearance. I've got 16" walls and I think 24" ceiling. My bunks are partially hung from section of e-track spread across the ceiling joists for about 4 years running.
http://www.tnttt.com/viewtopic.php?f=42&t=48345Removable A/C unit:
http://www.tnttt.com/viewtopic.php?f=42&t=49438#p956281So, I'd order from Cargo Craft again, but I would try to open a dialogue direct to the factory, and request updates in writing to ensure my custom requests were being handled properly. Most of the trailers advertised on the websites are a lower cost/lighter setup. It doesn't cost much more to get the heavier duty stuff done at the factory. In my case, the Expedition model, add windows, RV door, stab jacks, single step were well worth it. They shipped the e-track loose in the trailer, as I was going to finish it out with insulation myself. I think I threw them a curve ball, at the time, neither the dealer nor the factory knew about vertical e-track. (they do now...). You'll see in my thread that there were a few communication issues, and a couple of build items I wasn't happy with, but the factory sent a service truck and crew to my house (about 6 hours drive one way) to fix everything. Find another manufacturer that will do that!
Last, don't get too hung up on the V-nose, unless you want it for the extra interior space. As far as gas mileage goes, I think it's pretty much a wash, since we're all just pulling barn doors down the road anyhow. With the high profile, and flat, square back end, slowing down is the only improvement. Check out specs (better to entry level) of the Expedition vs. the Excursion, then the Elite V. They also have several re-branded versions of the same basic models depending on the dealer or reseller.
Edit: I eliminated the side vents, since I got the windows, and upgraded to all LED exterior lighting too. The offset slider windows has to be the single best choice, (credit gonefishin), lets in light, creates great cross flow ventilation with the fantastic fan I added, makes the trailer feel much bigger than it is. I spec'd two roof vents, I don't think I've ever used the rear one. Shipping weight on mine was about 2,200 lbs, and it's built like a tank.
Last: When I was looking, these guys had decent pricing and selection too, near Dallas, TX:
http://www.tuggertrailers.com/all-inventory/enclosed-cargo-trailers?manufacturer=Cargo+Craft&order=2&page=2 Also see R&J Trailers (related)