Who sells 60 mm springs?

[Beej '86 325es]

I'm going to be converting my rear ground-control adjustment sleve to the H&R ones, but they require 60 mm springs, not 2.25". I probably need a 60 mm, 140 mm length and about 600 lb/in. Any sources? BMP sells them, but I have no idea what brand they are...
Thanks.

[M-technik-3]

Contact Tru-Choice motorsport, they advertise in Grassroots and do custom suspensions for just about anything. You tell them what you want they will make it for you.

[Beej '86 325es]

I wonder if 2.5" springs would work ok. The springs would only be between 0.1" and 0.15" larger than the adjusters. Any thoughts on that?
I can't really wait to have anything custom done, I need them by next weekend.

[JakeM20]

Brandon, this out of topic, but what color is your car?

[Beej '86 325es]

Brandon, this out of topic, but what color is your car?

alpine white I ... needs new paint in the next year or two though. :(