Dealer update: After a few back and forth emails, I was able to get them to at least supply me with a set of lowering springs. It's not the outcome I was hoping for, but it's a decent compromise. I'm going to eat the install costs, but at the same time I get to pick exactly what parts i'm putting on. So there's that.
I'm getting the BMR Performance lowering springs, which are linear springs that give a 1.2" drop in the front and .5" drop in the rear. Most of the other sets offer a more even drop from front to rear, which is also nice, but I prefer to have a little more rake to my stance and I think this will do the job nicely.