Syllable Structure, Syllable Weight, Rhythm, Stress

In languages with weight-sensitive stress systems, in which both the nature
of the nucleus and the nature of the coda are weight-factors, are there any
in which some syllables count as three morae?
For instance, if the nucleus is a triphtghong or a long diphthong, and the coda
is a cluster that includes a sonorant?

[njawlnd]
[mwojrmb]
or some such, for instance.  (or make up your own, better examples, or, best
of all, show some from a natlang.)

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Are there any weight-sensitive-stress-system natlangs in which the primary
stress is always on the fourth mora of the word (if it's long enough)?  Or on
the fourth-from-last mora of the word (if it's long enough)?

Are there any fixed-stress-system natlangs in which the primary stress is
always on the fourth syllable, or the fourth-from-last syllable, if the word is
long enough?

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Are their any natlangs whose rhythm-type for distribution of secondary
stresses, is weight-sensitive?  For instance, every second mora instead of
every second syllable?

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Are there any natlangs whose system for distribution of secondary stress is
other than iambic or trochaic?
For instance, every third syllable, or every third mora, or every fourth mora?

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