http://www.twinworksfactory.com/ but don't click the Sv engine, click the link at the top- the engine link doesn't work.
Though there's not really a complete listing on there... I think to be honest for most bits you're better off buying local, I had the bearing in mind whe I posted because I figure there might be people wanting to do a front end swap and AFAIK there's no other way to get that part, since they make them
I'm getting a bunch of bits off a race conversion SV for basically nothing- delighted!