Well, my dealings with Marstar have now come to a complete halt. After 2 months, they placed the order, ordering something different than what I asked for. When I asked about that, I was, basically, told to go #### myself, and go deal with the manufacturer myself.
I'll be trying to get GunsNThings to do the import for me, that's someone who gets the job done, has great prices, and (this being the 21st century) doesn't have a problem with email communication.
If that doesn't work out, I guess I'll stick to the Norincos, or maybe try the SP-01.