Just confirmed with JSpec that no-one has done the ADR tests yet for a M35 3.5lt V6
Though they say it could be done easily (as the V35 3.5lt 2004+ has been done and at worst could use the V35 cat converter), but someone has to be the first to buy one and get it happening.
As much as I'd love one, buying an import is risky enough so I'll wait for someone else braver than I.