I don't think you need the full amount in cash to make the purchase, just the necessary amount of worth for the bank to loan the money. I'm not saying every bidding owner would borrow the money but they could. Similar to most of us don't have the liquid money to purchase the house we purchase, but we have the reasonable means to make the payment.
I know money will be an important factor but I actually think the trust is looking for more than that. Respectable bid - coupled with their comprehensive plan to keep them in Buffalo - will get you the second tier of consideration for the purchase. Then I believe a more detailed set of questioning will come after and the person the trust feels matches the wishes of the late Ralph Wilson the most will be chosen,