Idk if you've ever crashed on a couch before but it becomes another bedroom pretty quickly ( with all your stuff kind of just laying around ) maybe just set your rack system up in the living room if there is space. It's probably gonna be a mess anyways what's a rack system added to it? Do your parents live near any other relatives you may not have thought to ask? Perhaps ask a pet boarding service if they have space for your racks. (Snakes don't have ears so barking wouldn't stress them out). They probably wouldn't charge you much especially if you were going in to take care of them yourself.
Are there any local breeders that you know of within a reasonable distance that might have the space to board them for you? This would be preferable because you could trust them to care for your snakes properly. I know it's probably something that they've never been asked before but you never know unless you ask. But when asked hey do you want some cool snakes to take care of for a while and all costs are paid a lot of people would say yes.
I hope I was able to give you some ideas you may not have thought of. I hope you get it figured out.