Don’t know how similar to a #2, but I think it’s close.
So...stainless, skinny(ish) 30 cal.
Rock Creek will
Might call and ask Brux but I don’t think they will
I wouldn’t call Krieger. Great barrels but not skinny.
Depending on the contour measurements maybe Bartlein could be close enough. Bartlein 2B would be the closest they would make (or a #0).