I've had paintwork done on my Spicy twice now. The first time it was "panel painted" and not blended into the rest of the paint. The cost was about $600 for a front fender and front door. The paint was off a half-shade and it's quite noticeable to me. Not as much to everyone else, but some see it. The paint they used was a 2-stage process, not a 3-stage like we had. Yes, it was the same paint code, but it didn't match.
The second time was when both doors got carved up by a vandal on the driver's side. The shop charged my insurance $700 to paint both doors and blend it into the front and rear fenders. The paint matched better this time, however it's a lighter shade than the factory Spicy. In the sun you can't tell because it was a Sikkens 3-stage process like it should be, and it has a ton of mica in it. In the sun it's a perfect match. The blend job they did was awesome, and nobody has noticed it other than me.
I would definitely get another estimate, and don't be afraid to ask around for references and also look at their work. If a car they just pulled out looks good to you, then you'll probably be happy with their work.
$1,200 sounds a bit steep to me, but there's a fair amount of blending that will have to be done. Good luck, because your yellow is about as hard to match as my orange.