Another tree frog stowaway

[LilyPad]

I put my answers in red for you

Fiance actually has said now that he's not opposed to taking in the little guy! I'm pleasantly surprised.

It'll still be a time and money investment if we're not able to help him hibernate, though. Hopefully someone with experience with that will chime in with specific advice. My searches still aren't really turning up advice specific enough for me to feel comfortable.

Good point on the fridges. If it comes to that, hopefully the mini fridge dedicated to the frog only would be stable enough, but that's yet another variable to consider. I'm leaning toward vivarium now unless someone can help grant me the knowledge to go the hibernation route with confidence.

In the meantime, recommendations about awesome affordable vivariums and pro tips about setups would be much appreciated! So far I'll be looking for
* A square or vertically-oriented vivarium (glass with mesh top? Glass with screen top would be perfect.
* Sturdy branches for climbing (Is it safe to use found wood if it's oven-dried? Yes, that would work. I bake my wood and branches at 250 degrees F for a half hour.
* Substrate - the care sheet suggests additive-free top soil. Any other recommendations? Or specific soil recommendations? Because you are only keeping him temporarily, coco coir would work just fine. Just get the bricks that you find at the pet store and make sure they're FULLY expanded. It doesn't hurt to leave them in the water overnight. You could just use un-printed paper toweling on the bottom, but the coco coir will help maintain humidity. I do put a drainage layer in even temporary homes though so the substrate doesn't get swamped. I usually use rinsed perlite (that you can find at any garden store) but you could even do aquarium gravel or rocks if you want. Just put some fiberglass screening over that and your soil on top.
* Plants - real or fake, again, open to suggestions on what might do nicely in a one-frog vivarium Either or will work because it is only a temporary home. If you want to go real and cheap, just get a pothos. Home depot has a lot of plants that work. My fat greys love diffenbachia and philodendron.
* Smallish crickets - I've only seen one pic of this frog, and he's not *tiny*... looks to be your average male grey tree frog. Any vitamin/mineral powder and calcium powder recommendations for these dudes? Crickets should be no longer than the space between the frog's eyes. For vitamins and minerals, I use rep-cal +D3 and herptivite. I do calcium around 5 days a week and herptivite around 2 days a week. It does vary from week to week though. Repashy also makes some good vitamin supplements.
* Stuff to dechlorinate the water, as well as a sprayer for misting? I use seachem prime for all my water treating. There are other products, but that is my favorite. You do not want to use anything with additives like aloe.

I've seen suggestions for lights as well, and would love a recommendation on how to best provide light without overheating/drying the whole vivarium I use LED lighting because it stays cool. However, if you want to go cheap and want live plants, you can just do compact fluorescent lighting with a 6500K rating. I do a 12 hour day/night cycle. My lights go on at 7am and off at 7pm. You could also provide UVB if you wish.

Thank you again for all the help!