I think I know the feeling you have. I used to have this old 1950s bike, large heavy, carbon steel frame, large 28" wheels (635 tires), three speed Sturmey hub. I spend quite a bit of time gradually picking it completely appart, cleaning, greasing, oiling, reassembling it, rebuilding the wheels... I loved riding on this bike. After a couple of years with it as my main bike I went for a ride on a new racer, new fancy gears sliding up and down the cassette with impressive ease, narrow wheels, hardly any weight at all. You could get an old heavy bike with less gears, they are very nice to ride on when sorted out, but they are heavy and more work to pedal :- )