For anyone interested: Gridseed prices have dropped significantly and you can get the "blade" for $1500 (~0.60-0.65 BTC per MH/s at this time). The "cupcakes" are about $120 these days (~0.8 BTC per MH/s). Don't overpay if you are looking to buy.
Please PM me the supplier details for the blade. GAW Miners messed up on my order so I'm back to square one.