"Norton heads have a solid casting to mount to, but are even worse to assemble pushrod wise"
Ain't that the truth RR. First time I had to take the top off the Atlas engine in my P11, I swore I'd rather do 100 Beesas, in the dark. In fact, on those sorts of hybrids, it's a close call whether to take the engine out to get the head off, it's all so tight.
As for head steadies and rocker boxes . . . the "just a matter of etc" can be a poser, on most marques. But have to say, on my A, only a little oil mist around the edges on the rare occasions I actually get around to cleaning it. Not enough to stop the cast iron bits from going rusty. As Manormike knows, who started this discussion, mine is a million miles from being a vision of loveliness. But despite the odd glitch she has worked, does work and I hope will keep working, with less time spent on keeping it that way than on pretty much any other old bike I have ever had. (Except a B31 - but of course.)
Having had the opportunity thrust upon me recently to rebuild the oily bits of a quite pretty sprung-hub Triumph, I know which I prefer. And it doesn't begin with T.
Cheers