Any collateral that you can offer?
And in regards to the fees, its not the wallets that have fees but bitcoin transactions in general. Also, there are far better wallets out there in so far as security is concerned which should be something to consider when taking into account the large amount of bitcoin you are asking for.
You're thinking of valid collateral? What possible valid collateral he can offer for 250 btc? Considering he is a newbie only valid collateral he can offer are his kidney's after his plans fall off and he hits the rock bottom.
