Paint should match no problem. They can also "blend" adjacent pannels.
If you are worried how it will match 10-20 years from now, why are you worried about carfax/diminished value? If you are keeping the car value doesnt matter, if you are selling the car then 10 years paint match wont matter.
I plan on keeping it for a while, but my crystal ball is currently in the shop.
I just don't want to be affected by it negatively in any way, considering it's not my fault. At this point, I've been Viper-less for so long, I'm just happy to get it back! With all of the effort I had to go through just to hold them accountable, I already feel affected negatively. I don't think anybody here would stall a friend/colleague almost 3 months after hitting their parked car. Because it's not my daily driver, I'm not even asking for a rental that I'm entitled to.
The one thing that irks me is that State Farm tells me that the reason they came to their settlement amount is that just by driving my car off my property, I've taken some risk of losing some value in my car, so it's tough luck for me, even if I have to eat any diminished value... Their job is only to make my car "appear" how it was before the accident.
Anyways... I just want my car back, and lock it up forever.