Considering taking in this rescue...

[bcr229]

He may have to stay in the 20L just until I can find him something bigger (probably on kijiji) because our walmarts suck for container selection and we don't have container stores or anything like that where I live either.

If you have a Target, Lowes, Home Depot in the area they carry under-bed tubs that work well for snakes. I think WalMart also does "site to store" where you can order and pay for stuff online that they don't normally stock in your local store, they have it shipped to the store, and you pick it up.