The rocker panels on my xj were toast so i hacked them out. i've got some 2x5x3/16 tube i want to weld in place of them. problem is that i don't have a MIG. i've only been welding for about a year but understand the basics and can usually get the job done. what do you think the chances are that i could successfully weld the rockers myself with a lincoln AC 225? if i used 5/64 rod and concentrated on the 3/16, allowing the puddle to "run" over to the thin rocker metal, would the 3/16 get hot enough?