since this is for a "stock" car that front setup is awesome for turn in, but is too darty and high wearing for a stock road car Steve.
I would be more inclined to run toe in on the front for a road car as per factory along with the rear toe in as you mentioned.
Do not go stupid with the cambers front and rear (1.5 front, 1.0 rear) and your castor is not adjustable in a late model such as yours (all cars have castor differences side to side slightly to aid in driving straight down the road due to the camber built into roads for drainage)
The rear should not be touched in regards to the trailing arms also, leave it stock.
So in summary what works great on a stock car is:-
Front:- 1.5 neg camber, 1-2mm toe in
Rear:- 1.0 neg camber, 1-1.5mm toe in