Okay so I have a buyer for 4 lined up and here is what we are doing.
Since I am trying to repair my name here (because I am kind of an asshole) ... I will make publlic the details.

I am going to package and ship 1 rig to my buyer.
I am NOT asking him to pay me until I provide the tracking number.
This way the risk is 100% me and not on the buyer.
He will send payment and then we will repeat process until all 4 are sent.

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I still have two barebone rigs left.

Thanks all.