[tlhIngan Hol] Is this acceptable ?

[mayqel qunenoS]

demons appear, the scared human asks "what are you ?" and the demons
reply "demons for some, angels for others".

Suppose I write the above in klingon:

nargh qa'pu' Hurgh, 'ej ghel Human'e' lughIjbogh: nuq tlhIH.
jang qa'pu' Hurgh:
'opvaD qa'pu' Hurgh, latlhpu'vaD angels

1. at the {ghel Human'e' lughIjbogh} I think the {-'e'} isn't
necessary. Am I correct ?
2. at the {'opvaD qa'pu' Hurgh} is the {'opvaD} on its own acceptable,
or is it absolutely necessary to write something like {'op HumanvaD}

3. and most important: since at the above story the context is clear,
is it correct for the demons' reply to be just {'op HumanvaD qa'pu'
Hurgh} "demons for some", or is it necessary to write {'op HumanvaD
qa'pu' Hurgh maH} ?

4. If I remember correctly, some time ago we had said that
{'oppu}/{'opmey} is wrong, right ?

qunnoH jan puqloD