>If we forget normalised spelling for a minute, what should we be trying to
>pronounce: hun, hún or hon?

You forgot 'hón':)

Does it really matter? The idea is that if you want to use
reconstructed pronunciation you just pronounce the normalised
spelling as written.

>Also according to my grammar, I have listed menninir and not mennirnir, as
>listed in Lesson two.

This is probably my mistake. I'll check when I get home.

Regards,
Haukur