I see you're at the weight vs accommodations stage of shopping. I read a lot of similar posts where the shopper wants low weight but needs a queen sized bed, separate bunk room, full shower, two air conditioners, etc, all pulled by a small SUV. Not saying you are identical to that similar poster but the general trend of more stuff in a light box holds true.
I think you may have to give up some things to travel light. The Livin Lite, by all accounts, is a good trailer and is probably one of the most weight conscious. You pay for all that aluminum, though.
