the problem with that big of buy order is they will pump the ask up and make you pay top dollar. Now put in a 1 m order on the ask, at the same time put an order in for the Bid of say 5 m and again 10 m on the bid. you might have to buy it in lots to keep it at the Ask to get in with that much.. FYI
(IMO) Sometimes I'm to the point, and sometimes I'm out in left field. JMHO