I've got a little craftsman 120v flux-core welder, adjustable speed, non adjustable current just a high/low switch. do you think it's up to the task of some body work and maybe even a little frame work (replacing rusted out sheetmetal rear fraim rails on a 72 nova with competition engineering replacement rails) or if not then temporary spot welds then take it somewhere to get permanently welded in? i know i really should be using a better welder or take somewhere to get done but i don't have the money for either and i really want to do it myself so i can learn.