Many details point in the right direction.

Lugs on the head tube with cutouts that look just like my early 80s "Racing" model.

Fork looks good.

Rear brake bridge looks correct.

Three lines on the seat stay.

Decal set.

FWIW Two of my "Super Prestige" models had zippo on the stays. Must have finished those on a Friday after lunch....

Very cool frameset/bike btw. Always interested to hear what Barb and the family has to say about these bikes. They are very good at returning messages. imho