Looking for used wheels or original hubcaps

[selmer]

I have a 1973 Chevy Suburban that my father bought new, we had it restored last winter. The only thing left that I'm missing is either a nice looking set of wheels for a fairly low price, or the original Chevy hubcaps that went with this thing. Here's a couple pics, I think you'll know what I mean when you see them. It looks "unfinished" without something nice on the rims. The beauty rings just aren't cutting it. If you have either of these options or could toss me suggestions on where to start looking, I'd sure appreciate it. It's a four-wheel drive, so I need to take that into account also.
Selmer