Why BC? There are better options for the same price and much better options for a little more money.
Why so low?!?! I guess it won't matter what you buy at that ride height since you will be practically sitting on the ground. Maybe consider air so you can raise the car to a reasonable ride height to drive and drop it if you want to hard park.
LCA's will depend on how much camber and ride height, same with toe arms. No need for trailing arms.