Yes we're only talking about 1000-1500 lbs of cargo. Talked with a riding buddy that used to build trailers, he suggested that the aluminium would be a better option.
I don't think you guys realize how small an enclosed 5x10 v-nose actually is. At the max you should (technically) be able to put two full sized bikes in it, however you'll have to change/add the tie-down hooks (and also wheel chocks). The thing that people tend to forget about is that you need to allow room for the bars.
My trailer's only 57" (4' 9") wide on the inside. Bars are 32" wide and bikes are ~86-88" (7+ ft) long.
The reason I want an open trailer is for less weight and being able to haul more bikes. Yes I'd prefer an enclosed trailer however it just isn't doable right now. Plus if/when I do go back to an enclosed, I'm probably going with a 8x20 (if not bigger). That way I can actually put in some cabinets/bench. I used to have a little wall cabinet in the 5x10, however I kept on hitting it....it wasn't in for long. So Jax, there's no way that an "air up mattress, genny, frige" is going in there.