Want plasma cutter, but no power hookup

I am wanting to buy a plasma cutter, I found a good deal on one.
With all the body work and frame work, tunnel mods im gonna be doing, building brackets, i need one.

Prob is, I dont have any 240v hook ups, in fact only one I have is the basement for the clothes dryer.

I would need like at least a 50ft extension cord.
I have read mixed reviews to the affect that extension cord will work and also no, that will cause a fire or kill you..

Any ideas?
and no, rewiring is not an option.