Not for Mitsubishi. Still a limited suplly of GM and Ford OEM parts.
Biggest spares chain here is Repco. They have access to anything that's out there, but drew a blank on the Roller cam. One of the problems is that that particular motor had such a short production run. The previous motor had standard rockers with hydraulic lash adjusters, and the next model Magna had the 2.4
I have sent off a couple of emails, i'll keep you posted.