Glad you got it figured out.
Go with the high grade. You will only want to do this job once. $180 difference is nothing - nothing! - in the realm of paint.
Paint is fun but it is a tremendous amount of work. I hope it goes well!
Ds968 - Im actually quite glad to hear that about matching metallic paint. I am in the process of removing my PO-installed vinyl wrap which was at the 3y limit and it has caused my clearcoat to delaminate on the fenders. Really displeased as it was NOT supposed to do that. So I will be shopping quotes for the repair this week. And, I also have paint code L22D (code confirmed on option sticker

).