I don't see how you'd be happy with a Redline if your budget can justify GTS money.
The performance just isn't comparable ... I exaggerate a bit, but it's a bit like umming & ahhing over whether to buy a new M3 or a 328i.
I can see that certain things might not be what you want, and you might drop it back to a Clubbie R8; but then they're not that much cheaper anymore either, it probably depends on what deal you can get.