The wheels are aftermarket copies, the tires are relatively inexpensive, no problem with all of that, but you do get what you pay for. You may also want to try discount tire direct.com or tire rack.com
You can get the wheels you want here for $395 plus $89 shipping. They are replica wheels but you can buy the original center caps and make them look like the real thing. This is the cheapest place that I have found these wheels for but unless you can get some tires for cheaper that $415 then I would say that $900.00 for wheels and tires is a pretty good deal.