It's not recommended that you buy antminer s9 in any 3rd party distributor it's not safe and mostly they are scam and fake unless if you own the website and trying to promote it here in a forum.
If you really wanted to be safe when buying antminer, go buy directly from bitmain the price right now is cheaper than the past months ago.
Check the bitmain shop here
http://shop.bitmain.com/product/main?lang=enAnd I think you need to decide with your own if you order now you can get the miner in a month depends on what month they will release the current batch, but if you wait again it takes a long time again to restock.