The frame looks like it doesn't need anything but a bit of polishing, but be gentle, it's rather thin paint. Meguiars Cleaner Wax is what I use and it shines like glass. You can get replacement decals for $15.95 each for the toptube and downtube sets from Velocals, just choose the "Gold Metallic" option.
https://www.velocals.com/motobecane-script-down-tube-decals-1-pair-choose-color/

Other than needing toptube cable clamps, I'd replace the black brake cable housings with white, and route them behind the bars, and shorten-up the rear derailleur shifter housing. Other than that, it looks like just a normal clean-and-lube job to me. Beautiful bike.