https://www.bikeforums.net/classic-v...g-bicycle.html
Sounds like you need a sport-touring frame.
27 X 1 1/4" tires were commonly spec'd on non-racing models into the mid 1980's and are 32mm wide. 700c wheels will give you far more tire options.
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72+76 Super Course, 74 P-10+ 79 Tandem Paramounts, 84 Raleigh Alyeska, 84 Voyageur SP, 85 Miyata Sport 10 mixte and a queue