Thanks Fraggy and montreal bimmer for your suggestions!!
I was not aware of the Koni FSD/Eibach combo before but after speaking with the local Koni distributor today I don't think it's possible for me to get it (at least not from them).
With the price they quoted me I can get the coilovers from Bilstein or KW for a little more. So I guess I'll either go with the B12 or I'll have to find a way to get the Koni FSD/Eibach combo from the US. I'm still tempted by the idea of swapping my stock springs with the ones from Eibach or H&R but the shocks wearing out prematurely issue still bugs me a bit.