Hot and bothered

I overheard my father say he was an "ass man" and, quite honestly, I threw up a little bit in my mouth! But, hey, good for him, I guess. I, too, appreciate a good looking behind, so when I brought Louis home in April I thought the air conditioning unit sticking out of his behind looked like a hemorrhoid in dire need of attention. Before I unhooked Louis from my truck, I popped that AC unit out of the back window (cut open by a previous owner and rigged in pretty tight). This was, hands down, one of the most difficult projects I attacked on my restoration project. Clearly the previous owner did a darn good job in getting this puppy in the Scotty, because it took me the better part of two hours to get it out. That was April. It was cool, breezy and I couldn't imagine needing AC in this tiny, little abode. Now it's mid-July and the Hudson Valley feels like Vietnam and I keep finding myself asking, "did I make a mistake taking that out? I still DESPISE the way it looks in the back (no offense to anyone that has one similar), but there must be a way to pop one back in (I found a used AC unit on Craigs list, met the guy in a parking lot because I'm still a little Leary of the Craigslisters, and snagged this one for $25!). So, here's what I've done (after pics will come shortly), but I've figured out a way to slide it in when I'm at camp, making it secure enough that bugs and water won't get in. Maybe it's just my giving up on finding a replacement window, or the heat is getting to me so much I've thrown my design aesthetics out the window!
(photo is louis on the day after I brought him home, before tearing out the awful eyesore)