Just buy the springs you won't have a problem. 2inch drop all the way around. But remember when you get the springs put on. It takes about 2 weeks for the springs to completely settle. When i first got my eibach sportlines put on, the drop was only like an inch and than 1-2 weeks later it dropped where it was suppost to be.
I believe that the vert's have a different rate on there springs do to the weight difference.
I've read that somewhere but can't remember where.
So in theory,if the vert springs are stiffer to take the weight difference,and you use coupe springs,they will feel softer,or bouncier on your vert,then the vert springs.
Good way to find for yourself is to email there tech if they have one.
if you follow my cardomain thing, it will show you H&R SS on a 97 cobra. It is low enough for me! The air dam scrapes everytime I pull out of a parking lot, but has only hit underneath once, and it was my fault. Good luck
with the added reinforcing on the vert I would stick with the pro springs I have them and scrape on some speed bumps, lower and it would scrape a lot more !!!