I just replaced my OEM springs (127k) with Eibachs and am very happy.
Not sure why you've had a mushy experience with them, but mine are definitely stiffer than the old ones. But not too stiff nor radically different than the OEM to make the ride uncomfortable.
Might give them another shot. Camber kit is about $80 and the 4 eibachs are about $230 from [ www.czp.us. ]