I followed you all the way to where you mentioned having to pawn jewelry to refund his deposit. A deposit is to hold until the transaction is completed, not for you to have already spent. Put yourself in his shoes and wonder how you might reply if concerned you will ever see your deposit again. I also wonder how clearly you expressed the transmission issues and wanting to keep the license plates, since your 1st post is not very grammatical, with clear sentence structure.

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1984 & 1985 CA 300D's
1964 & 65 Mopar's - Valiant, Dart, Newport
1996 & 2002 Chrysler minivans