if I recall
from high school spanish, spanish words are pretty much pronounced as
they are spelled. So that means:

'i' as in it;
'von' pronounced as you'd normally say it (accent on this syllable as
there's sometimes an accent over the 'o' when written in Spanish)

Gaete is harder as I think in Spanish the 'ae' has a distinct sound.
My best guess would be: guy tae (as in tae diggs).