The story so far is...
It's been on the back burner whilst I moved house.
I have moved the wheels on to my uncle's Marin Mount Vision for his Yellow fever! I had some Tioga rims on Shimano hubs that look more subtle, but the rear parallex hub kept blowing up, so I've switched it for a Middleburn one instead. It's got Cook Bros cranks now and a chain tensioner too. All I need is some brake levers, which are on their way, and some chainring bolts.
It should be complete in a couple of weeks, and ready to ride.
I actually bought a Ti framed fixie last week, just to sample the single speed world, but not sure that fixed is the best way to travel! Roundabouts are interesting, as you can't lean in with your inside leg up! The cranks keep turning and clip/grind the tarmac - OUCH!
I feel that the Ti Raleigh Torus will get my spare M900 XTR and spare Middleburn/Ceramic wheels, as I think it's a waste as a fixie.