Stock oem chrome wheels for a 05 gmc sierra ext cab

[wwotr]

I need some advice/direction from the more "Seasoned" members/owners here.
I just bought my Wife a 2005 GMC Sierra Ext Cab.
It comes with Cast 17" Wheels stock.
She does NOT want a bigger wheel Diameter.
I saw this 05 Sierra with (what looks like) an upgraded GMC Chrome Wheel in a Parking Lot, so I took a picture of it, (see attached), but I think these are a 20" wheel.
That being said, does anyone know if they make these in a 17" size?
If they do, does anyone here (that might of went aftermarket),
have a set they may consider selling?
Don't know if it makes a difference but the Wife's is an extended Cab and 4X4.

Any Help/Direction would be greatly appreciated.

Roger