Sweet bike! In addition to tires and pedals, I'd get some modern brake pads. The ones on there look like they might be original; something from Koolstop or Swissstop would be a relatively cheap and easy upgrade. I'd also go with new rim strips - they're the strips of rubber or cloth that go around the inside of the rims and shield the tubes from the spoke nipples.
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Regards,
Chuck
Demain, on roule!