If you really want to set it up right..... you want to run buss duct or buss bar through the shop. The net effect is running the fuse panel down the length of the shop. You can then drop power from there to the higher voltage machines. This saves the labor of running conduit (and wire) all the way back to the main panel every time.
It costs more in the beginning and saves money over time. You will also be less reluctant to move things because it cost less. Its one of those things that when you make the investment it is hard but over time you realize it is the right decision.
You can buy used buss duct, make a deal with the electrician that you can physically hang the duct. He can bring wire/power to it and do the drops.
You want to buy used Buss duct. Around here Bull Dog is the most widely available so you can find it used all over the place. When considering the cost keep in mind you need:
Duct, typically comes in 10 foot sections
End cap for the end of the run
Starting cap to connect wires to
Drop boxes of the correct amperage for each drop
Drop cord or conduit to each machine.
If this is your last move it is worth considering.
Good Luck!