Budget 17" Wheel Option

So, the OEM Steel 17" wheels in the image above are 115? The ones I find on ebay say 114.3 or 4.5 bolt pattern. I'm prety sure the SRT8 and AWD wheels are aluminum and/or 18".

If they are 115, here's the math

.7mm = 0.027559 inches. Thats the difference between 114.3 and 115 bolt pattern.

Is this a big issue?
Will the lug nuts seat properly?
Will the wheel be centered?

Crap. Never dreamed finding a decent looking and cheap set of 17s would be such a task. I might just bite the bullet and buy a set locally for $120+ dollars and see how they fit.