I don't care for the looks of the discs I see advertised, from Eastwoods ridiculous prices down to fair prices, all looks too flimsy. I have a 3/16" Stainless disc so if I do it I'll put a 5/8" hole in center of that, balance it and know that nothing is going to explode.

Torch is only a very last resort. I have a fuel tank in the area and also there's some very stubborn original paint back there, in areas of fender/quarter where I can't easily remove it. The disc, if it will work, is a much safer option.

Hah, shortcuts? You simply wouldn't believe the amount of damage the truck suffered in back-to-back rear-enders, once by a 2005 Ford 1 ton 4WD doing 25 mph, didn't even touch his brakes! Rolled the floor up, caved in a 1/2' steel channel Barden tow bumper,wiped both back doors, popped the left rear quarter out 12 inches, blew all the welds clear up to the front doors & footwells, cracked the windshield, threw front fenders & hood out of alignment, blew the welds in the roof, driver's door had to be pried open, etc.

All that got straightened with a come-along, hydraulic jack, hammer & dolly, plus some cut/fab/weld work, the old fashioned way: blood, sweat & tears.