I don't know who has one like that, maybe they can help you. I just wanted to express one of the concerns I would have, and that is I would be afraid to open the door to enter not knowing where they are.
If you are willing to sacrifice a whole room to give them all the free reign space you can (nice idea, btw) you could consider glider proofing the whole room but section largest portion away from door off with that building mesh stuff & pvc piping people use for cage building and include a entrance door with-in that, so you have a safe place to enter room and then access to clean & play with your gliders. Just a suggestion, it's the way I would do it if I had a room to spare.
Also, consider using sections of the builders mesh & fleece on areas of walls & ceiling to attach things to and for them to grip.
Check, double check, & triple check to make sure you have covered all danger concerns for gliders.