Would you ever put more than one 6-50R on a circuit for convenience sake?

If there was only intention of keeping one such machine, and one worker/hobbiest on the premises, it wouldn't bother me. However, there will be a plasma cutter also, and a good possibility of it being a 2-man shop at least part of the time. I'm trying to avoid overly long cords also. (60x72 building, 30x40 work area).

What would you do in this situation?