Entertaining the idea of converting my front bilsteins to coilovers with MM's kit along with some non-offset front control arms.

Having a hard time choosing spring rates.. car is mostly street driven but would like a more firm rate. Going by MM's chart they suggest 350-400 rate for a street/track car but I've heard that it can beat you up a bit on the street. The car see's 500-1000km's a year so I'm not that concerned but would like some real world opinions from you guys. I would be leaving the MM road & track springs in the rear.

Would it also be beneficial to install a swaybar end link kit?

Thx.. I'm sure this topic has been beaten to death but would like to reassurement before clicking the order button.