Just a little update if anyone was interested, I found the cap I had asked about a few days ago, sorry I never could get a picture to load but I attached a photo to the email of the distributor and was told it is out of production but 20 or so in stock. They can only sell via Harley dealer so I called my local shop and they made the order for me..........at less than 11 bucks each!! Anyway the company is global products inc, and the part number is WR30230.
Thanks again to all who helped.