brand new account with over 1,000,000 coins in total

that's awesome, where should we send you the money first sir ? :"D
Not me, my clients. We need buyers who are willing to sign a Confidentiality and Non-Circumvention agreement prior to revealing our sellers. I assure you though, this is very real.
Escrow will take place through a third party who will verify the Buyer's proof of funds and hold the Bitcoin.