Here is my take, respray, neg. modified top tube cable routing, NEG. From the BB shell and cable guide strap.. 80's, often there is a date code in very small numerals, 784 for July 1984 as an example. Wrong Fork! big negative, I had not looked seriously at that auction after I saw the top tube guides... but I have a correct fork.

I do have an 80's Prestige in this size, perhaps I should talk to Dr. D....by the way its cable guides are rings on the top of the top tube and noodles under the BB, chrome chainstay and chrome flat top crown on the fork. Always possible a special order on the ebay frame but the repaint and other stuff indicate danger.