You need to think about your brew-day logically. Water and drain are the hardest to move or possibly add (do you want your bar "wet"?), whereas the 220 is easy to route to where you need it.
If you don't want to pay for software, I'd suggest getting some graph paper. Sounds like kids stuff, but, to scale, draw the area of the room, cut out different fixtures (bar, tables, sinks, kettles, etc.). Be precise with your scales though.
Lay them all out on your "room" drawing, make sure that you have enough space between items to walk through, work, carry, etc.
Give yourself multiple options and be thorough.