Decent handling susp setup?

I have a set of 4 Bilsteins on the way. I also have a set of circle track rear springs. I am speaking with firm feel and should hopefully have one of their front sway bar kits coming and will have them rebuilding my manual steering box.

Question on tires, I know that it promotes understeer but I just want something a tad wider to fill out the rear fenders. If looking at slightly wider tires should the object to just keep the rear tire height the same as the front?