Great find! My chrome 11.8 is my all time favorite bike.

Here's a page from a 1980 catalog showing all the original equipment...
http://buggytexas.com/images/198004.jpg

These frames are clearcoated and is probably what is messed up on yours. You can strip the clearcoat off and it will look amazing! Of course you will then need a decal set. I have an estimate for the decals from jrrestore and will be glad to send it to you if you'll PM me.

Now lets see those photos!