To plenty of wheels plenty of times.
I can’t help thinking the wheel would be significantly weakened by such an offset?
It’ll probably be stronger seeing as it’s currently ‘offset’ over the brake mount and you’re just moving it back over the flanges a bit.
Would I be better off just forking out for the wheel?
No (well, maybe, but only if you’re a mechanical clutz, the nipples are alloy or you’re a princess who can detect a pea sized stiffness increase with fractionally wider flanges).
Just do it slowly, 1/4 turn on each of the DS spokes, then 1/4 off the NDS, and repeat until it’s central in the fork. It’s probably about one turn depending on spoke tension.