Stanhopea spiking habit

[katsucats]

I have a few Stanhopeas from Ecuagenera coming in next week and I just realized I probably bit off more than I could chew. I typically grow in LECA and water culture, although I have an old bag of NZ moss from SVO lying around. I know that I could put them into net pots or baskets, although I don't know how wide the holes have to be for the spikes to fit through. I also don't know whether the spikes could find their way through the sides, or do they pop up indiscriminately through the bottom as well (my primary question)? For example, if they show up at the sides, I could adapt an S/H with a net pot. But if they are just as likely to go downwards, then a bottom reservoir is out of the question.