Maxx PARANOiA

My current F22 is on it's last leg and I'm trying to find an economic replacement. I can't afford the H22, and I'm having problems finding a decent F22 around that I'd be comfortable putting in my car. I've seen tons of F23's around and was wondering if they would fit...and moreso, if they do fit, what would I need to do to make it work? I'm sure the tranny isn't a direct bolt-on (I'd like to keep my manual trans, it's doing quite well, and I have a brand new clutch). If anyone knows, please let me know.