The best way to lower the car & cater for the turbo engine is to fit shorter front struts with bigger brakes. The struts other Americans use seems to be 280Z/X. The spring would probably be too heavy, but give it a go. the Rear springs can then be cut, or another set made to match the ride height. I second the idea of using the later 510(a10) headlight buckets to give you the 4 headlight look, though you might have to change to later model front fenders & bonnet to match the 510 grille. As for the rearend, which you don't mention, you can probably use the rearend from a 240SX, which should be a solid axle H190. You have to modify the lower trailing arm mount, but the stock rear end just isn't going to last with the power. Please keep the photos coming, I'd love to find a 2 door B310 sedan here in Australia, but they didn't sell them here.