I currently only have Leucs. I've kept aurotaenia, auratus, bicolor and imitator in the past
Mopani is one of the best rot resistant woods, it should last you a very long time.The wood is mopani, should hold up just fine yeah?
Since you are removing the spider plant anyways, I would suggest moving the rabbit's foot fern in the front right to the spot that the spider plant will be vacating. That way it isnt getting in your way when you are dumping in fruit flies in the future.