a farm, market and cafe in Ojai California...we grow on 16 acres all year around ..famous for growing "vegetables that people don't like to eat" i.e. brocolli, collards, kale and beets.
Visit our blog at organichiles.blogspot.com to see photos of the greenhouse we built using an old carport frame and a custom made cover...the whole thing cost us less than $500.00.
Thanks for the link to the blog and the article about your greenhouse....so many different ways of doing things, if we just use our noggins!