If you are ok with putting many machines together you can get 1th on like 10 Antminers for example that ship out when you pay.
It only takes 5 antminers. It's by far the most cost effective miner.
I am rockin an antminer and getting 200GH with ease. It is a very cost effective miner considering timing and availability. Just be careful which reseller you get it from as they tend to charge high prices.