You really really shouldn't wait on the aiptasia. If I were you, I'd take care of it now before it gets out of hand. Your lfs
should carry either aiptasia-x or joes juice. Zap them now because they will spread VERY fast, and If u wait the 2 months to take care of it, your whole tank will be covered in them, and it will be one major problem. Nudibranches are hard to take care of from wat I understand, and If u wait 2 months without killing any of them, the aiptasia will grow faster than the nudis will be able to eat them.
I don't mean to sound rude, and I apologize if I am... I'm just trying to save you a real big headache down the road. Aiptasia is something you have to take care of ASAP or it WILL take over your tank, and then the only solution might be to nuke all your rock and start over, which would be a huge waste of money.
Good luck with your new tank, and enjoy!