Suggested Wire size?

[McClary]

as stated on another thread, i ordered the Powerultra205 combo machine.
due to me just recently moving to a new shop building. im redoing some of the wiring in the building.. im no electrician , but i know the basics of hooking up ..

what i do have now , is a tig machine that requires #6 wire from breaker to the unite...
my other welding mig machines require i think #10 from the breaker to the plugs to the machine...

im wondering what size wire i need to run for the Powerultra205 ?

i have access to both wire sizes... but i do have more #10 then the #6's ...

this is for a shop...... so i have 3 breaker boxes in the building to run wire from as well..

any input or suggestion would be great...

oh yeah, this use to be an industry electrician shop, and they left alot of overstock wires, pipes , boxes and all sorts of stuff.. so i got a little to work with .. haha


thanks
mat