For what it's worth, I just went with the BC Golds. They were the best bang for buck. $1350 from hyper. The BC golds are handy because they have the adjustable top hats as standard for my car and they aren't all too stiff for daily driving. I had Bilstein coilovers in my previous car and they were very stiff, so it was a big concern for me when choosing a set this time.
I've ben told the D2s are not very good, someone even told me that they probably wouldn't even get a cert (don't know why?).
Replacement stock shocks would be great but I was told $700 a corner for those. Viperguys option sounds like a good idea. Honestly, the cert process is pretty much a waste of time and a big hassle for a singular thing like coilovers.