33 Years Old, 2 Kids, 5'4 and 120lbs, Finally Getting my BA and Lift!!! Seattle, WA

After breastfeeding, my breasts are completely deflated. They have no volume and I'm very insecure about them. I've wanted a BA for years now (my youngest son is 7) and I've finally saved up enough to make it happen. I'm a single mother, and feel guilty about spending so much on a procedure for myself, but the timing is perfect for it. My family is supportive and my kid's dad will be coming with me to my pre-op appointment on July 11th. It's getting so close and I'm excited and nervous! My surgeon is Dr. Sajan in Seattle. I've met with a couple of doctors, and I was impressed with him. He really took the time to figure out exactly what I wanted. I don't want my boobs to be too big, just higher. I assumed that a BA would naturally lift them, but that's not the case. My doc informed me that a BA makes them bigger. Not higher. So I needed a lift too. I was frustrated because that tacked on another $4,000 to the total cost, but I'd rather spend more to get exactly what I want otherwise I'd rather not do it at all. We decided on 255cc...
Not sure if that's too small, so could someone maybe suggest what I should do?
They will be silicone, under the muscle.
My doc said saline will def cause rippling due to my size, and that silicone provides a more natural look. Any opinions on silicone vs saline will be appreciated!

I wanted to lose a bit of weight before my BA on the 20th. I have less than two weeks before my preop appointment, and I just have not been very good as far as eating healthy and exercising. Oh well. I'll do what I can and see what happens.
I'm not nervous at all at this point. Three weeks from today!!! I can't believe this is actually happening!! I'm really excited and have been looking forward to this for a long time. I just hope I get exactly what I want.

Before pics in a strapless bikini (that I kept having to pull up)