GMA,
Dude,call your credit card company & dispute the charge!!!! Once he goes bankrupt, you don't want to go down on his sinking ship!!
HE IS NOT GOING TO SEND YOU THE MOTORS!!!! But he will keep your money if you let him!!!!
Let the credit card company reimburse you so that you can get the Lehner's from a
REPUTABLE source. The credit card company will deal with him and your hands will be washed from it. Fora credit card company with billions, it is no big deal, it is a simple write off, but for you, you are out of $1000 if you don't do something about it soon!
His ship is sinking and you are on it!!
Get in the lifeboat man! 
Let him go down with his own ship! 
I also had to dispute charges from seedy companies like this & it is easy!!!
Call the 800 number on the back of your credit card!
Good luck!
-Rich.