[raggedjim]

And a differing opinion, I always try to reuse/repurpose as much as I can so I understand the motivation to use what you have.

I will throw this in though, I have a buddy who had his tank and compressor under a lean-to outside of his shop. A 60 gallon standup. He wasn't very good at draining the tank on a regular basis and one day he was in the shop and his compressor tank blew out the bottom, took off like a rocket, and broke one of the 2x6's of his lean-to.

Check out those tanks as well as you can.