I'd fit a distribution box with seperate fuses (or breakers) for the 3 phase sockets, and another for the 240v sockets, and yet another for the lights, and run all the cables as singles in steel 40 or 50mm conduit right round the 'shop.
You need to decide if your 3 phase sockets are going to be 4 pin (just 3 phases), or 5 pin (3 phase and neutral), look at your equipment to find out, the 5th pin is for a neutral, which is sometimes needed if your machines have computers or drives.