Nice paint job. I really like that color, it's highlights the classic nature of the frame.

On the groupset dilemma: I can really feel you on the compact/triple problem. What's more: I feel like triple cranksets became sort of passé on road bikes nowadays. That said I feel like if you already have campy triple drivetrain (which looks really good btw) it will be much easier and cheaper just to use that.

But if you feel like the new gruppo is what that bike needs I would recommend Campagnolo Athena silver groupset. Damn it's are nice and would look great on a classic bike.