IMO, you're on the right track. I did not catch what car is under consideration here. It matters because weight and where its being carried by the chassis is going to dictate the general direction of things.
Qs:
What car? engine? PS? A/C? Current TB diameter? Current rear spring rate L/R? Suspension bushings? Wheels that will be used?
In general, the 1.03 tb is a good choice for starters. Recommend a front anti-roll bar and good gas shocks all around. New bushings and a performance front end alignment will help.
My handling preference leans towards a bit soft, but well controlled suspension setup. Too stiff, the car doesn't grip the road well; too soft, it floats and does not give good control. IMO the biggest wheel tire combination that will fit comfortably under a fairly stock setup is a 225/60-15 on a 15x7, 4ΒΌ offset. This produces a wheel tire package that is 9" wide and 25.6" tall.
I currently have 235/60-15 T/As under the Demon. It's a little too much. Hard cornering on bumpy streets bounces the tires off the inside of the fenders. The biggest problem I see with continuing to running this setup is going to be choice of tires in the future. Choices are limited