Double check on wheel/hub fitment

[grayb]

I have a US 2007 Yaris sedan. I'm still on the original wheels and they've had a very rough life. The ride is suffering for it and I'm looking for a new set of wheels and tires while trying to be frugal and DIY. I'll get the tires at a local shop, but looking for wheels online.

I found these on ebay, and the specs look right for my car. I already have the stock 15" steel wheels, so these should be about the same:

http://www.ebay.com/itm/331774482870

Then going on that wheel's specs of hub bore at 72mm, and another post I found here that listed the Yaris hub bore at 54.1mm, I would need these hub rings:

http://www.ebay.com/itm/361355856077

Please let me know if I've missed anything, or if I am doing this wrong. This is my first time buying wheels. Thanks.