My car is gone.

[Frixco_240]

I was driving home from school after dropping off my girlfriend and was going to get gas.I was driving up this street where I have no stop signs and this other guy in a 04 corolla ran his stop sign and t-boned my car. His front hit my passenger side door,rear quarter, and bented my wheels. The all happened on the rear passenger side of my car. I'm guessing they will total my car. Since we can assume he is at fault and he has AAA insurance, I'm wondering how I should go about either getting a new car or have them fix my car. I have all my receipts for EVERYTHING that I did with my car, tints, wheels, suspension. Now, if his AAA don't give me enough money, can i just have them repair it and declare it salvaged? Like, let's say AAA wants to give me $3k for my car and I don't accept the $3k but instead, want them to fix it, can I do that? I'm not sure how this works and I searched but can't find a direct answer. Thx for any help. Accidents sucks.