Yes, I just looked through the hundreds of pictures I took from CO, saw the GMC, and the KW's, and lots of white wheels too.
White/gray is definitely out. Although gray rims on red Dayton centers is a possibility.
lots of the trucks had the wheels same as body color.
So, I have decided on the wheels the same dark red as the cab (same as the AC Mack)
Front bumper a gloss black, possibly Linex on the top flange.
I need to make some phone calls and get the paint code used on that Mack, then have some mixed up, spray a card, and take it with me to the powdercoater. If in the end the wheels don't match quite right I'll have to paint them too, the podwercoat would be a tough "primer" at that point. Basting and powdercoating is a lot cheaper than I figured it would be, so no loss if it has to be painted over.
If red is the wrong color y'all don't have long to make a convincing argument otherwise...
Thanks again,
Grigg