That site will have all the vehicles and their bolt spacing. Just click on each different manufactor and make a list of cars that have the rims you are looking for. When you find a couple cars with the same rim bolt spacing pattern as you are looking for, google that car to make sure they have full sized spares, then take a trip to the junk yard. Or craigslist. I got all my spare steelies from there, usually 1 or 2 at a time. Its a little more of a pain that way but the price for singles is usually very low.
Steel wheels are on the way out but so are full sized spares. Makes getting a second set of rims kinda hard.