Body shop estimate to replace my rockers and fix some other rust spots is off the hook. I've got the confidence to take on the job. I have research, power outlet in my garage and a retired wrencher sidekick neighbor to give me direction.

What's the minimum welder I should look at? I have several wire feed options in my shopping area.

 

I assume you're talking about a wire feed (MIG) welder. At least a 240 volt input power, the 110 volt units usually come up short. Look at the Hobart 180; I have a Hobart 210 and it makes me look good. Do not use fluxcore on body work; spring for a bottle of C25 and run a ER70S-6 solid core wire.