Nice find!
But I think it's not worth the price. You could use a Pin2dmd instead which is half the price with same effects and colorizing to your own taste as an nice addition.
It supports mostly all systems... and stargate was one of the first that were tested.
Here:
https://germangamingsupplies.com/RGBPINDMD-Display-Tyche_1?curr=USD
To answer your questions, yes it's my shop, and yes, buying from outside Europe is possible. Just drop me a line here or [email protected]
Greetings,
Dom