Want plasma cutter, but no power hookup

I've got a 120 volt plasma cutter, a cheap one,, but for over a year,, it has worked great, cuts all the bodywork well,, and have cut up to 1/4 in steel for a custom trailer hitch, even knocked the heads off of some frozen spring mount bolts. (that was messy, but I was outta acetylene)... Haven't needed any better yet.. hope it helps..