Brett, thanks for the inspiring case. 700$ is freaking high price for the assessment though, I might call couple of independent labs tomorrow and ask for the quote. Perhaps you could recommend anyone? I am not going to simply give it up...
crawal, I found ~50$ for a single sample, but I have no clue whether this report can be used as evidence and that it will detect the oil type used. Would be thankful for an experience share from someone who has done it.

