The 285/35/18 is only 25.9 inches in diameter.
They look too small on a B body imo.

I haven't found too many larger sizes for these tires.
It looks like the best bet would be either the:
BFG Rival 295/35/18 = 26.1 inch diameter
Falken 295/40/18 = 27.2 inch diameter

The Nittos come in 295/45/18 but didn't test well.

All thing being equal, for handling is a square setup is better than staggered?
Thoughts on if a 295/40/18 would fit on the front of a b body?