I have done some looking at travel trailers and there are some nice, all aluminum trailers out there that are way less than an airstream (and don't have the wood flooring of the airstream!). I tossed all my site when it was apparent I wasn't going to be getting a trailer until I retire. Just google "aluminum travel trailers" and "lightweight travel trailers". Tons to pick from.

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Kirk
Las Vegas
2016 X5 40e Mineral White/Black Dakota Leather, ZLL, ZCW, ZDA, ZDB, ZPP, multi contour seats, rear side window shades, HK stereo
2011 E90M3, 6-speed manual