Fiat, welcome!
I had to look up the average temperatures and rainfall for Modesta. The good part is that you have no frost in Winter! Would you be able to grow outside year around, perhaps in a shady spot during your hot Summers? Or grow outside in Winter and bring your Orchid inside during the Summer?
Regarding your Zygo, I think others here are better equipped to advise you, some of our members here grow Zygos/similar hybrids and or have similar conditions. I am not sure if the amount of light in your set up is sufficient for blooming.
Added - I just saw a nice ad from Carter & Holmes on my Fb page showing a pretty Zygo!
