First Steps on the Road to BOOST

I'm advertising for a replacement gearbox, the chattering is getting on my wick and the synchromesh is getting a little slow. I don't think the existing clutch will survive long when BOOST is applied either.
The Mighty Benz provided excellent service in France recently, covering 1400 miles in a week and restoring it's honour. It's done almost 160K now though, how much longer before something big breaks?