Lovely build/resto--I haven't been on this site for quite a while, and it was a treat for this to be the first thread I opened. Nice to be able to connect the person with the 'My Ten Speeds' website too.
My brother used to race on a PX10 (probably a 1968/69 production)--but in green, not white. Had all the same parts as yours, including the Stronglight, Normandy Competition, Simplex. It was a great bike that served him well... Purchased new at Russ Hayes Cycles in Victoria, BC.