One option is Claremont guns WA, they have a facebook page.
Action closeup, its using the special interest arms kit from the USA. Apparently prefers hardball(FMJ) ammo.
$2600-3000 last time I enquired depending on options.
What I am looking at is a custom job by either Rolf Blacknick in Vic or Rod Woods in NZ on action of choice. They follow the authentic ww2 delisle bolt setup which looks nicer in my opinion and feeds everything.Set the barrel back into the action, shorten bolt and use slightly modified 1911 mags, no chunky adaptor housing needed.