I really like the cam lock idea. I've got a 7 gallon conical and have been needing a blow off recently. This might be a better way to do that. Thanks for sharing the temp regulation. I'll probably be adapting that in some form too!
Thanks for the comments guys. I'll see if we can put a parts list together.
As for adding ice. We added 2 bags of ice the day after brewing, and three bags the next day. But there were about 4 bags of ice in there after we added the three bags. Our next plan is to add a dorm fridge to help maintain cooler water temps to reduce the amount of ice we have to use. We will probably try this on our next brew day.
The coil was around $60 or 70 shipped and came with standard hose fittings on it. We didn't get it here, but check out StainlessBrewing.com. I think he has reasonable prices and will bend it however you want it.