Can't answer about "orthodox or not", but concerning this:
And practically speaking, how would one recognise somebody with:
(i) no self-view;
(ii) weakened self-view?
- this is a difficult question, because many people do not speak about their self-views, simply because they just don't have them formulated, "vebalized" (because usually there is just no need for that). But they still have them, ofc. And if you will speak with them about this particular matter, you may hear them say - "Yes, I think that I'm this, I'm that, I'm my body, I'm my will, I'm my consciousness" and so on. If we are speaking about determining this in yourself by yourself, this is also aint easy to detect for 100%, simply because you may remove superficial clinging to such views, but the root will still be intact (in suttas this root is called "anusaya", underlying tendency). So you can't be sure, if in your next life you will never have such self-views - even if in this life you see them absent. I think only Buddha or arahants with supernatural powers could confirm if one really has got rid of self-view roots, ect. (and some suttas, for example, AN 10.75, confirm this). And, probably, that is why to detect if you are really a stream-enterer, The Buddha gave Dhamma Mirror (which constists of 4, expanded to 6 factors). You check if they are on place (for, presumably, quite a long time like many years or even whole lifetime) and so, as it says, one "can declare about himself - I've finished with hell, animal realm... [so on]". Interesting to note, that there is no such thing in Dhamma Mirror like "seeing absence of fetters". Of course, they will be absent if you've got a fruit of stream-entry, but this is not that very criterion for you to check if you really are.