If you want to give the OP leverage in negotiating with marcotheminer then I would suggest either buying the senior account that he is selling or lending him the .25 BTC that he needs (although he may not be in a position to repay in the near future). If you did buy the account then you could use it to earn additional BTC from signature deals, use it to say unpopular statements that you do not want associated with your 'main' identity, or attempt to resell it after some amount of time for a hopeful profit.
As it stands now the OP is in need for a quick resolution in order to get money for whatever he needs, while marcotheminer has plenty of BTC that he can afford to wait a while for a resolution.