A restoration (repaint) will only be a black hole money wise.
I would look to trade it for a Colnago frame set in a size better suited.
Given some time, if that does not work out, sell the frame set and look for a bigger size.

BTW, those panto bits look original, unlike some that were presented in the valuation forum recently.
Do buy more visually correct hoods, Do exchange that stem... oh the tragedy.