Re:
Shimano MT62s (Deore) work well on tourers of this sort of era - my 1989 Raleigh Gemini is fitted with a set. "Wide profile" too, so no issues with drop handlebar brake levers.
I did try Frogglegs, but found they fouled the pannier rack. Waste not, want not - said Frogglegs ended up on the CX bike and are still giving good racing service (occasionally finishing ahead of the riders on snazzy disc-braked aluminium bikes) to this day!
David