Not sure there's much else to do until the week before B.
I'm making cake for the supporters. Any preference to flavour B and Madge?
Exciting KK! I don't suppose you can tell me what times the various starts are? The official web site doesn't appear to have them, helpfully.
We'll find out, usually it's elite men followed by elite women and champ start, and then the masses.
However, where you are in the masses can have quite an impact on your gun time. The year I paced for RW, I was put in pen 5/6 as the 9 min mile pacer and there were people in there who were running 11 min miles from the start. Unfair all round. And the congestion in the pack is just so constrictive.
I would say that unless you can clear 3.30 at the very latest, don't even try to get a PR. Just enjoy, it's a great atmosphere.