Which springs fits e34 and will be low enough?

[superturbodiesel.com]

Hello guys.

I'm searching for springs that fits the e34 in the front, which makes it lower than for example 60/40mm springs. From what car I can use springs? And cut them eventually to the right hight? I've found som e30-springs 80/40mm, will it fit in the original holders?

Any idea of spring set up? I have shorter shocks, and want buy coilovers.