In case someone years from now is also in a small-ish space and has a large collection that they want to get some air for without doing a couple at a time, here is how I did it.
What you will need:
Paint drying rack to act as shelves for the cels
Some cardboard slices to give them a solid backing
That's it
I got a paint drying rack from amazon. It has 50 shelves, split across 2 sides and about an inch between each one. I don't use the top shelves since I am paranoid so that leaves 48 cels at a time I can air out.
I also got some cardboard slices from amazon that fit the size of the shelves. These just act act a backing since the shelves themselves don't provide adequate support.
Then I just remove the cel from its old bag, give it a snnnnniiiffffffffffff, place it on top of its new-to-be bag with the painted side facing up, and place the cel+bag on top of the cardboard shelf. Then just slide it in. In 2 days I'll remove them, cut the bags a bit, add microchamber paper in the front, and then tuck back away for 6-8 more months or so. Then repeat for the next 48 cels.


And also here's the exact products but I am not sponsored or telling you to buy these or anything it is just for informational purposes and if people want something similar
https://www.amazon.com/Sax-All-Steel-Do ... ial&sr=8-1
https://www.amazon.com/Juvale-Corrugate ... ial&sr=1-1