That might be an interesting project. Now you got me thinking about building a mountain bike.... that would be pretty awesome.
As for the tent, I ponied up $150 for the UL backpacking tent that is what I believe to be the same tent Libby and I have used in the past. Tried and true. Although I kind of wish I had read this post before I bought the tent, as I would certainly not be opposed to free over $150, given my current situation. I guess I could always just return it, if it's not a big hassle to dig this old dome of yours.