Mileage misrepresentation!! I did not accept delivery. Now he says..

I was conned into a purchace to buy a low mileage 1972 chevy blazer (47 k) original miles. a bill of sale was exchanged w/ as is clause. I did not mind as long as the vehicle was as he said it was.
I drove clear across country to pennsylvania to pick it up. when I saw it there was no doubt it was at least 147,000 miles , later recearch through penn dot records confirm my suspicions.and not to mention obvious other dammage he did not truthfully describe the blazer. I refused delivery, he claims it was as is. There is a lawsuit filed,he was informed that he was responsible for the safe keeping of the vehicle till this was settled. Now it is 2 years later and he now says that there has been dammage to the truck since it has been sitting outside for the last 2 years.He has probably been picking parts off it too. I am representing myself "Pro si" Is there some way to bring sanctions against him for failure to safekeep or even destruction of evidence??
I am dealing w/ a crook and am determined to bring him to justice!! I need your help! Thank you.

[I AM ALWAYS LIABLE]

My response:

Go to the law library and check for statutes, case law, and treatises (as current as you can possibly find) on the subject of "Spoliation of Evidence". If it is allowed as a Cause of Action, you'll need to amend your complaint to add that as a Cause of Action.

Good luck.

IAAL