Give a realistic estimate of the cost. There may be some options for scaling horizontally -- explore those before making your estimate. It may be that the bene

Give a realistic estimate of the cost. There may be some options for scaling horizontally -- explore those before making your estimate. It may be that the benefit outweighs the cost (you don't what they have up their sleeves -- maybe they have a buyer if it can support 5000). The answer is never "it can't be done" -- but sometimes it is "how much money you got?"