Headed for the Mountains
Join Date: May 2014
Location: Vancouver Island, BC, Canada.
This weekend I'll be hiking, and there'll be one night where I'll be separated from my partner. My solution is a Sea to Summit bug net, an 8x10 Siltarp, and a sheet of tyvek as my ground sheet. The double version of the bugnet can be found for under $60, and Tyvek can often be found cheap if you know anyone building a house. While not as neat an option as yours, bugnet plus tyvek weighs about 2/3 what the mesh house weighs and the low cost is great too. That, and sticking with a tarp solution means if you get a different tent the tarp is still useful.
Alternately you can try sewing your own, if you stick to a simple design it's quite easy.