15 x 6.5 or 7 inch wide wheels may work but I think you probably need to get the car to a GOOD alignment tech and get the ride height back in spec. Cranking the torsion bars down doesn't exactly help the caster angles too well on these cars.
I was looking at 15x7s and then adjust the torsion bars as needed. I would have to find a shop that would know how to do that
I have had it aligned at les Schwab but that was to make the car drive straight.