I was left with the impression that Lusa USA went under and were just selling off stock - Or am I reading this incorrectly and by "do another run" you mean shipment?
As a long-term solution stocking up on these followers are probably a good idea - One day stock will be depleted..and we will have to make do with something if we need more magazines.
The Nitescout A3 uses uzi magazines correct? How much work would it be to make the Lusa use unmodified uzi magazines?