Tudor 78400 series Bracelet link question

[Daso]

Hello All, with the great knowledge of the board, my slightly snug Tudor 79270 Oysterdate only came with 11 of the 13 links a full set comes with and it fits ok, but a touch snug. I would rather just find one of the pictured links neat the clasp and have two on one side instead of two additional full ones links. Is this a dumb idea or if I do order a set of two links, how do I know which size to order. I really only need the length of one of the small links to be comfortable. To be clear, I circled the link in red below. I also can't seem to fin that link anywhere online. Thanks.