I bought the same tubing as Mofox1 through ebay when they has a discount code. One thing I found was that it was very difficult to bend without kinking it. I thought it was just me and bad technique, but I took it to a local engineering company and they struggled too. I now have two very basic 50' stainless immersion chillers which work well, but I couldn't even get a return bend for the water connections.
After all the costs and not being able to do exactly what I wanted with it if I was to start over I would probably buy pre-fabricated coils.
Just my 2c.