I have been wanting a greenhouse or the complete kit to build one. The size I want is app.8-10'W x15-20'L x7-10'H. I would be willing to trade big for this valuable item! Hundreds of dollars worth of necessary!
I think it was over on the Greenhouse forum, there was a gentleman who would email you the instructions free of charge. You might want to try there!
The gardenweb member with the plans is named bobwhite.