I've never come across distinctions between pads, other than KoolStop and Aztec will let you know about how 'good' their compounds are. Ceramic rim-use pads of course. Pads is pads yes?!
All depends if you want 'cool' cantis, or cantis more date-specific. Both types work well. I rate 732 as more 'cool' - got a set on a 1990 or so Diamond Back, a 93 BOTE and look cool.
If the Univega was born when the M733 were about and you like them go with them. They're still cool, classic and classy. The wider cantis would prob look better on the Dawes tourer. What I'd do anyway.
I'd maybe have the pads with a bit less post showing outboard, thus bringing the cantis 'out' a bit. There's always a sweet spot and I've never found it to be when the pad is pushed all the way in like in your photos.