The chemicals don't really get all over the place, and if your birds don't live in the bathroom you can just do all the stuff involving pouring in there with the door shut or something, and put them in containers with lids.
I just started developing it yesterday, the stuff from a local camera store came to a little over 80 bucks (Changing bag, tank with reel, thermometer, developer, fixer, two 16-oz measuring cups). I got it home, practiced twice with a roll of cheap color film in the light, threw it all in the changing bag, and 30 mins later I was hanging the first roll in the shower to dry. We'll see how the scans come out but they looked like negatives to me
😛
I wasn't really scientific about it, guessed at 10 ounces for the tank and put 8 of water and 2 of developer in, measured the temp, looked at the time and pretended the film was t-max 100 since the actual film wasn't on there. Didn't time it precisely, but it worked fine.
This article is good, it has a lot of pictures and I appreciate the way it's written, it helped my confidence that I wouldn't screw the film all up.
http://www.fecalface.com/SF/index.php?option=com_content&task=view&id=344&Itemid=92