I think a lot depended on the depth of your pockets. Even into the early '70's when I started riding the 'hot' thing to do was to put ace bars on your bike (whatever the capacity, even sports mopeds!), and if you could afford it, a set of rear sets. More often than not you'd see a 'regular' 'bike with the rider prone, but with his feet in the standard postion.
The Triton was the bees knees because it showed a degree of technical individuality....engine from one type in the frame of another. Also popular (to a lesser extent) were NorBSA's, NorVin's and Trifields. Then along came the Japanese and at the tail end of the cafe craze we saw the proliferation of kits for the superbikes from Dresda, Rickman, Dunstall et al. But you needed lots of dosh for them.