You would need a power supply for the radio of course. Steel whip inside the shop or outside?
I would mount it outside, fix a bracket for it to mount to the building some how. It's a metal building so I assume it's grounded good enough. I was wondering if I just took the bracket off of the tool box and mounted it to the building and run the coaxial cable to it if that would work, and yes, I have to figure out a 12 volt power source.