Most of those you mention I'm not familiar with.
Guaiacum officinale is definitely a possiility, but I understand it is
difficult to grow.
If you want to try a guava, P. cattleyana is probably a better choice, because
the fuits are smaller.
Iris,
Central NY, Zone 5a, Sunset Zone 40
"If we see light at the end of the tunnel, It's the light of the oncoming
train."
Robert Lowell (1917-1977)