Well, the bolt, washer and nut came to a whopping $3.22.
I'm certainly open to suggestions. I just called Alex's friend Ansel since he's an acomplished welder and he said he'd just do exactly what I'm doing, though Alex and I think he was probably just trying to avoid me asking him to weld it for free (

), which wouldn't have happened.
I'd honestly rather get it welded so I don't have to worry about the bolt coming loose or me re-stripping the new larger hole. I'll call McVay's if I can find them.