Am I wrong?

crackedback said
Good ol, Joe Balboa

Tell him if the payment isn't in your hands by tuesday evening, you're done. Deadline!

Certified mail would take 2 days to get to you barring, weather delays. Can he provide the certified tracking? Probably not. I smell a huge dung heap close... LOL

I have to agree with crackback.

If he got a money order and sent it certified he should have receipt for both of them. Tell him to e-mail photos of them to you to prove he did this.
As crackedback said if you don't receive them by Tuesday. Tell him you're moving on.