If your car is normal ride height, most ramps will work. My dad has this old set fo ramps that are stamped metal, and the lips on the sides are too high for me to get my RS on, but it's lowered about an inch. The urethane ones, like Rhino Ramps, usually have a lower lip and shallower angle, so you should be able to sue those. You should be able to find some plus a decent creeper at any auto parts place, be it Kragen, Chief, Sears, whatever.