I'm lead to believe there might be an importer for GMA actions on the Sunshine Coast in QLD.
My Gunsmith is currently building a 404 on a LH Express Magnum action. Customer said he bought the action from the Sunshine Coast.
He's also doing a 7-08 Rem on a GMA Short Magnum action for a different customer, complete with Smithson mounts.

I'll ask him who the supposed importer is next time I'm there.

DC