I live on a boat and cut the bar stock with a hacksaw and drilled with a handheld drill. It was not difficult. Use a punch so the bit doesn't skate, and drill a small hole first, and work up to final size in several steps. No special tools required. Just the proper technique.
Easiest way to cut 1/8" stock copper or aluminum is by using bolt cutters. Gives you a halfway smooth edge too, once you round of the corners with a file. As for drilling, owning a drill press is the key. Use a decent bit, keep some oil and water on hand to cool it off and take your time. Easy peasy.