I have 2 chest freezer, both hooked up to temp regulators- one for fermentation and the other is my collared keezer (see link for my build below). I'd opt for getting your fermentation dialed in before kegging, that way you can at least have good bottled beer, rather than not-so-good kegged beer. Keezer's are rather easy to make, really. For a 2-3 faucet setup, all you really need is a 7 cu. ft. chest freezer, some 2x4 lumber, silicone caulk (or liquid nails, even), 15/16" spade bit, corner brackets, and some time. You could probably get the entire thing done on a Saturday morning. Check craigslist for cheap freezers, then offer lower than what's being asked. I purchased a 14.8 cu. ft. that was listed for $120 for only $80. I'm happy to answer any questions if you've got some. Cheers!