John, my operation is only 60+ orchids, about 1/2 in my large orchidarium in the basement under a bank of 4 t5 lamps. The others are upstairs in a south-facing box-bay window. We are planning an addition to the house which will add a large section to the basement with its own door. So I took a liking to your setup as it gives me a way to grow and expand under lights.
Right now my waste goes on garden from 5 gallon pails during summer and down the drain in winter. I don't generate a lot of waste as the orchidarium has not overflowed yet. The outflow for that goes to a 5-gallon pail which has remained dry since I set it up.
This is right after I set this tank up. It's now full. I'll add an updated picture this afternoon.
Here is the terrarium as it appears today