I built up a 1979 Zeus 2000 Supercronos as a test to see if I could 'modernize' a great old Spanish frame. It worked like a charm, and you could do it, too! I cold pressed the rear stays to accommodate 130 mm clearance needed for modern cassettes, and of course added European parts. New Campagnolo Chorus 12 speed 11-28 derailleur and shifters, old Campagnolo Pinarello 'drilleum' pantographed 42/53 cranks I've been carting around since the '70's, got some real Zeus 2001 side-pull brakes from Romania via eBay, along with Cinelli 110 mm stem from Serbia, Campagnolo seatpost bolt from Portugal (the country, not 'the Man'). Added new Brooks C17 saddle and Look KEO Carbon pedals.