If it was mine, I would find a Serotta frame with the 50th anniversary logos, have it made new again by one of the great practitioners of the art, CA, BB, JB, KA, pick one.
I'd also find a set of Mavic Bleu SSC rims in the correct drilling, add some Campionatto del Mondo silks and a Cinelli VIP saddle with matching leather handlebar cover.
I would take a lot of pictures documenting the build, take even more pictures of the built bike.
Then I would ride it. Back in '83 and '84, I broke the seal on a couple of those. Both buyers rode the bikes a lot.
Earle "I couldn't afford it even if it dropped into my lap for 1983 wholesale price" Young Madison, Wisconsin