How did you derive the valuation of 8 Btc in price ?
Also how will you take a precaution that since the account is register in your name and you have submitted documents to them, so a scammer say if use this account and based on this he will be trading and if anything goes wrong you will be caught.
8 BTC is basically evaluated from monthly profit output i am making from this account.. while giving this account I will have a legal note acceptance from the buyer that he will be responsible after the following purchase date.. exactly when we sell a domain or any famous online account.
Also, i will trade my account via escrow for secure transaction.