I was waiting my orchidarium for 5 months and there was still no certain date when it will be shipped, so I cancelled my order and took on an DIY project.
Many thanks to everybody on this board who helped me to choose the equipment.
Here is a reptile tank how I bought it:
And here is how I converted it into an orchid tank:
But I can not see any fans for air circulation. dDo you have any? If not, consider one or two 12V computer fans, otherwise you could get problems like mold and rot.
Thank you Phal_grower.
I used egg-crate sheets 4 ft X 2 ft from Home depot cut to size for my levels.
The levels are resting on the glass vases of different height, but you could use for support anything that has same height, stable and does not rot in the high humidity conditions. Some people use cut PVC pipes from the plumbing department.