Thank you all for your insights and advice. Agree that this is quite complex and risky (for both parties). In the US, I have used services like escrow.com but the buyer was not comfortable in this case.
As such, I have decided to ship these DSP8k babies back home to Austin --- one can never have enough rooms with Meridian 8Ks in them.. especially the white color which I have fallen in love with

Here's a short clip of the speakers in action:
https://photos.app.goo.gl/Sr1CcH9Uggi3x8516And if I have not said this before.. this forum rocks! I don't think I would have stayed a Meridian customer for 20+ years if not for this group guiding me through what is a brilliant but fairly complex product we all geek out on. Thanks also to some great dealers/reps like Bruce Sinclair of CMB integrations, Ryan Donaher/Meridian America, and Rick Weldon at Audio Images across the pond.. all top shelf individuals!
Gracias!
Max