Should I buy this 440?

I would make sure I knew what I was getting, what year, forged crank and if it really runs without any problems. Generally police maintenance is top notch, after sale to the public, so so. I don’t know the 440 market, so all in all you don’t know what you all are getting till you get it running.
That's a cast crank harmonic balancer.
Crank must turn. I don't buy a locked up engine.
I don't think police car matters much at this stage.
Would be nice if he could take off the heads and check the cylinder bores.