Have tried a lot of different communication with the seller today. He has been pretty responsive via text, but this seems to be a potentially stolen unit. I've yet to see a bill of sale that he promised and have a string of text messages that seem very out of place for a normal seller on here. He told me that he had friends on here, so I asked her references, and then he said he didn't have any. Also told several people different prices when they asked him what he paid for the unit via different PMs.
Hate to be the guy to say this on here but I would definitely avoid the deal unless he can produce the bill of sale that was promised or do a video chat with a unit, which still hasn't materialized on my side despite repeated requests.
He also seems to have marked this sold and when I asked him why he said it was because I said I would take it, but we hadn't agreed on anything nor had he done any of the verification I asked for.
If I am wrong, happy to retract this post.