My take on this:
If you buy something "as is" then that's what you should expect.
If you saw water in the oil, you should have walked away
waiting 2 years and expecting something to be done about it is kinda stretching things
No one could have known that the head was cracked. with the water/oil issue it would just be one of many things that should have been checked.
Calling his work was just not cool at all, esp when he didn't work there when it happened.
making a post like that can only have one ending. You can't expect help when you start out like that.
learn from this
AS IS - i was told it was good, then reassued it was good then called a few months later, he said tough.
I had issue FAR greater than this engine to deal with for a while. I kept hoping he wasnt lieing when he said not to worry.