Just echoing others' comments/complaints:
It seems strange that the rigour and clarity in the (enjoyable) clues are absent from the endgame, which is not unambiguous and a little strained. If this had been more satisfactory, then the instruction about inserting bars would probably not have provoked irritation.
Of course, this is all from the solver's perspective; it may have appeared logical and straightforward to the setter.
I suspect (hope!) that the Chambers listing is a red herring. Anyway, it's always possible that the thematic phrase will also apply - literally - to completed solutions sent in.