I found this old incubator on craigslist. Its old and wood. I've seen people looking for these before. Why are wood incubators good/better then new ones? Hope fully these links work!
http://dallas.craigslist.org/sdf/grd/746758942.html
There is also this one
http://dallas.craigslist.org/grd/710963549.html
http://dallas.craigslist.org/sdf/grd/746758942.html
There is also this one
http://dallas.craigslist.org/grd/710963549.html