As for the Rolex link issue, even I can do it with a small $3.95 screwdriver set (you actually only need one) and I am a bumbling noob. So it should be no problem for you.

It's sort of a remove two screws, remove link, then put ends together with one screw. If you need more off, go to the other side to balance it off. Not that I think it matters much, but I start on the 6 oclock side of the band, then I'll take a top one off if I need more. There are other ways to "fine tune" it in the clasp, but we'll get to that if and when you need it; MOST DON'T