I've acquired a very large industrial chiller unit. Unit weighs 34000lbs and has roughly 5000lbs of copper tubing. I'm wondering what would be the best way to cut the copper out of it. It has 2 round bundles with roughly 300, 30ft long tubes. The last one we did, we used a chop saw with a metal blade. It cut the copper ok but I had a ton of waste at the ends where I couldn't get the saw close enough. Was wondering about a plasma? I had someone suggest a chainsaw but I'm not sure about that. Thanks for any help.