Ok, that's pretty much escrow!
However, there is always the issue of you contacting Avalon and claiming that your account was hacked into. Is there any documentation or confirmation that they will honor an address change or the release of your account to another party? If not, I would contact Avalon and ask them to give you clarification. I would also allow John K to take full ownership over the account after he has received the full payment. That would eliminate any possibility of you changing the login info right after you recieve the BTC(I'm not claiming you would do that). This would just ensure everything is controlled by the escrow.
Well I'e been trying to get in touch with bitsyncom here on the forums, I think that's yifu, but he has not replied to me, and if he does I'm going to ask for my refund as that would be the easiest way to proceed.
I'm looking for money now so I'm not about to wait for the unit to arrive to have the coins, They would have to be sent over as soon as johnK or another escrow verifies that all is good.
I'm not looking to screw anyone, I'd be willing to sign any paper or thread stating that I'm selling the account and what not, I know for a fact you can change the password and shipping addresses but can NOT change the e-mail, which sucks.
Any recommendations?