In the Summer of 1972, Peugeot PX-10’s were just not in inventory at the shops in Southern California.

I found a Bertin C-37 that actually ticked off more of the boxes as described in Eugene Sloane’s book. $310. Plus tax, with an Elvezia spare, $336. and change.
A later problem was my height, I was 12 and 5’-7”… so a 59cm it was. Two years later I was only 1/2” taller and racing, the bike was too big and too long.
moved over to a 3cm smaller Lejeune CdM.
much better.

Decades later I found a sister to the Bertin in a 56, curious parts swaps, Campag brakes, SL pedals, Japanese mattress saddle and riser bars, 27” rims! Corrected and better than I recall. A bit lighter tubing, shorter top tube.
paid $200. But they just don’t show up.
the second bike was from the same import batch, back when shops were still importing direct.