Corbeau CR-1 installed (pics)
The Best V8 Stories One Small Block at Time
I would go with black btw. Looks better than anything else on a pewter car hands down. Red, blue ect are too bright for pewter.
My advice is this:
Buy them new or gently used, IN THE COLOR YOU WANT. The replacement covers that Corbeau sells are bullshit velcro-on things (not actual "factory" replacement covers) which are a PITA to DIY install and have very poor fitment if you do (hence the reason I had an upholstery shop do the install).

See below/above:









