19x9 is about as wide as you can go square. You might get away with a 245/35-19.
A 10" wheel upfront is way to big. I have 19x8.5 with +35 offsets. You might be able to go 19x9 with +35 front and rear. I know the rears will fit. Not sure about the fronts.
I'm running 19x8.5 with 235/35 in the front and 19x9.5 with 275/30 in the rear.
So a 19x9 might work for you.