In the meanwhile -
@Shadytrake ( Melissa) and her husband have been building a most interesting Greenhouse ( see heater set up and more) for their Orchids. If you would like to see the construction of their Orchid- specific greenhouse, follow along here
The thread "Harbor Freight Greenhouse projects" in
Greenhouses forum
starting June 8. 2014 post 633812
and finishing yesterday.
Congrats on a job well done!