The Firestone Wide Ovals are a nice looking tire, but are not correct for 1969 Chevs as the style of the current repo tire is for 1970 and newer. The 1969 Firestone Wide oval had a different style all together.
I like the Goodyear's better, just my personal opinion.
You might want to try
http://www.partszoneonline.com for the trim rings. The part number is 9796919. I ordered a set last year for my SS wheels and they appear to be just like the original, except for the attaching mechanism as noted above. Good luck