Simmons FR-1 20's

[Badcv8]

Hi Guys,

I am new to this forum so Hi to all !

I am about to invest in some rims for my beloved 2003 Monaro CV8 Series II.

I have had the car lowered with a set of Eibach springs. 30mm drop in rear and 25mm drop up front.

I am looking at a set of 20's. 8.5 up front and 9.5 at rear. My dilemma is I don't want to touch my guards. Given the car has been lowered, I need some advice:-

Will I get away without touching my guards ?
Should I look at 8.5 all round ?
Should I look at 19's instead ?
Tyre size ? 235/30/20 front and 245/30/20 at rear ?

Wheels are such a hard thing to buy. Any advice would be appreciated !!!!

Thanks !