@Chev a big welcome to you! I've been down this road with a single mastectomy/diep flap recon. I am now 2yrs post surgery and super happy with result. Like you I wanted to go much smaller unfortunately they didnt which is an annoyance,but the surgery itself is great. It does take months for things to settle and too difficult to tell just yet.
I'm happy to talk further if you'd like to join the Breast Recon group, only as it is a Private Group and the main forum is public.
https://onlinenetwork.bcna.org.au/group/1-choosing-breast-reconstructionCheers,