You will want to go with lighter springs than what you are running, also I would say because of the springs on it, it was ran on carpet, so you want to add some droop and lower the roll center. Your oil weight will depend on the springs you put on the car, but I would start with 20lbs 40wt in the front and 15lbs 35 wt in the rear, if it is really bumpy go with the number 1 piston, otherwise use the number 2's. About 5.5mm rh, and start with .5-1 degree of toe out in the front, and 3 degrees toe in in the rear. I'd run 4 degree caster blocks, relying on braking to get me into the corners, and about 1.5 degree of negative camber. Get cs-27 tires, and a mazda 6 body as well.
Anyways that is my 2 cents, sorry if it doesn't work or if it is not right by others.