Re: Welding on Big box store bikes?
Provided you can weld (then grind) (then weld some more) (and grind some more) the exact spot and allignment for the caliper and at a perfect 90degree. I thought of doing this but went another direction.
I did investigate a new fork. Found em starting at around $55 for one with brackets for accomodating a caliper. (research type and head sizing etc.)
Might be an "easier" way to go.
But I'm sure you've researched it already yourself. Good Luck.