Dango, if you're upgrading wheels, go wider. Do a 245/40 up front and a 275/40 out back. As far as spacers go, I need to take my car to a wheel shop and see about getting my rear wheels tucked into the fender a 1/2 inch.
Ok, time to update my build thread. I finished all my homework and had a couple hours of free time before work, so I went to the garage and sanded down the lower and upper bumpers. The upper bumper also recieved a quick coat of black spray paint (to protect the fiber resin from water and to make it all one color until I am ready to prep for paint), and the lower bumper still needs more sanding, but by hand. I used a die grinder with a 2" 80 grit and 36 grit sand paper attachment to remove the material quickly. Once I get the resin sanded down good enough by hand, I will bondo in the low spots, and sand again. Then put a quick coat of black spray paint down. Once the upper bumper is dry, I will reinstall it on the car. I still need to weld the bumper support panels in, and give it a coat of black spray paint, then install that as well.
Also, I put another coat of black paint on the Super Supra Stick.