Build the biggest building that your wallet and space will allow. Do your homework and plan out what will work best for you. I have been planning my build for 3 years now and it just went up a couple weeks ago. I used a company that specializes in pole buildings, they sold me a complete...
I also just finished a new air compressor install. And when researching what I wanted to do for plumbing, I read a lot of negative reviews about those style set-ups always leaking. I ended up going with 1/2 black iron pipe.