I would be concerned with galvanic corrosion. What material are the studs? I've never come across aluminum studs and I'm honestly not sure if they would be a good idea, if they even exist. Are the nuts aluminum all the way through, or are the threads on a sleeve that matches the material of the studs? Alu is also softer, so it's not totally unreasonable to think that the nuts could be rounded off or damaged if you are switching wheels often. Ultimately, your call, but FWIW I've been super happy with my basic kit from Motorsport Hardware. MH also sells extended titanium lugs if that's the look you wanted.
EDIT: Would you mind elaborating more on the Apex valve stem vs. rubber? I used the matching ones but want to understand if there is a reason why I should have.