I guess I should have specified the full plans. I intend to keep their current enclosure so I can transfer enclosures while we paint the outside, and let it cure. We're just not sure the color so it may take a bit to get it painted. It's very much sealed in the inside - I caked it in those corners, cracks, crevices, and any imperfection I could find, but the vent holes are what I worry about. Not sure if that would cause an issue with 'em or not. Here is a picture of the vent holes. The ones that are drilled into the side have the same thing on the other side as well. Trying not to post anything super revealing so I can post all the pictures in the enclosure build section, lol!