My apologies for not acknowledging the replies sooner. I forgot that I posed a question here.
(Old age)
Anyway... found a tut that uses .080 rods spaced with .060x.040 strips. After I had made a jig using this method, I found a paint tube wringer way in the back of a desk drawer. Wouldn't you know that the wringer makes the same spaced ribbing??!!!!
BTW, here is the tut by Marc Reusser: http://www.finescalerr.com/smf/index.php?topic=15.0
So a belated thanks to all who replied and for the suggestions.
George