Bikini shopping!

Thanks to everyone who has shared their journey. Your experiences have been tremendously helpful in my decision making. I am a 34 year old mother of 3 (11, 7, & 3). After my last child I decided it was time to reinvest in myself. I have lost over 60lbs through diet and exercise. I am 5'8 and 145lbs. I love running and have recently completed my first full marathon in San Francisco. So I'm going to treat myself to a mommy makeover. I have full TT with muscle repair and breast augmentation scheduled 2/6.

I'm super excited but have three concerns that are really weighing on my mind.

My PS suggested 450-500cc silicone implants. Isn't that really big? I am in a 32 AA right now. He thinks for my frame and since I have no breast tissue this would be the best look. I cannot even pick paint for my kitchen let alone boobs. I've read your should listen to your PS but does anyone have advice on size?

The belly button...now I realize anything will be better than what I have now but the pics I see really scare me and gross me out. Any tips on how to hall it heal and look as natural as possible.

Lastly the incision line....my PS just told me wear lowest pair of underwear and he will mark line where I want it. Seemed so uneventful to him and not big deal but I see so many high scars on here. I do not want to show over bikini. I have never worn one in my adult life and cannot wait. Did anyone have their scar show up higher than PS told the, it would be?

Pre op appointment 1/23. I need to start planning. Any advice on what supplies I need ahead of time would be great.