Building a Crypto Mining Solution

Loking for direction as to who might have contacts within Bitmain as I need to order around 30 L7’s. Hoping Vosk Coin can help me out with this as this is only the intial stage of the farm and more phases to come down the road. Working with an engineering firm where we design and build these but the CLient wants to only do the Dogecoin/Litecoin mining as BItcoin mining is saturated.