I screwed up!! Advice please?

Being a driver means it doesnt have to look pretty, I suggest externally patching the frame rails with sheet metal, just sure up the areas it looks weak, a mig welder these days is not a big investment, just make sure you get one for shielding gas and not flux core wire, then patch away! It'll be very rewarding, odds are that the geometry is fine, the factory stuff wasn't that close anyway and it'll need alignment, good luck! Turn a bad situation around!