Strictly mho, but I don't think there's any way the B1G gets

Hopkins without Maryland.

As for Stanford, they check a lot of the boxes for adding a men's lacrosse team. Specifically, the Title IX considerations are extremely limited for a FBS school, given: (1) the overall number of sports Stanford sponsors (rendering the additional scholarships a new sport would require of relatively little significance from a Title IX perspective; (2) Stanford's robust participation in women's sports; and (3) a favorable male:female enrollment ratio from a Title IX perspective (IIRC, it's 53:47, which mirrors ND). Further, men's lacrosse would seem to be an institutional fit for Stanford, and there's enough talent on the west coast to make Stanford competitive in relatively short order. The problem, as you mentioned, is money, and given Stanford's location, some of the costs associated with a lacrosse startup (e.g., travel) would be considerably higher than they would be at many other schools.