If you don't hear any further in a week or two, perhaps you could ask a Mod to send a message to his registered e mail?
As advice to buyers and sellers; always best to get full contact details from buyer or seller, so that you are are not reliant on firum messaging systems. Plus you then know who you're dealing with.
I'm sure that this will work out OK though. It's cerainly a life truism that 'Stuff Happens'. There are myriad things that might have stopped contact for a while.
Lindemann Network Bridge > McIntosh MHA150 > Shahinian Larc speakers