This!! ^ An update would be nice, but you know how slow the legal process takes... I wonder if I'll ever get my $270 back haha. I've already written it off as a total loss at this point. $270 is a drop in a bucket compared to the turbo kit purchasers. Scum bag should work his butt off until...
Being that high up, Id look into spark plug tube seals or valve cover gasket. Valve cover bolts sometimes loosen up over time. As stated above, that looks like a sudden valve cover gasket failure. How old is the valve cover gasket?