Hi Rob,
Some time ago I posted about some refurbishment work I did on my Colchester Triumph 2000
http://madmodder.net/index.php/topic,10697.msg123432.html#msg123432Yours looks to be a tidy machine
I am running mine from a VFD, 220v 3 phase so the motor terminals needed changing to delta configuration
There are a few issues on them that you need to look out for !!
The drive pulleys on the gearbox input shaft can wear (as on mine)
Some versions of the lathes have mains voltage to the control buttons, theres a gap below the chuck where swarf can find its way into the controls

(mine now has low voltage controls)
Coolant finds its way easily into the apron gearbox, so when you use the one shot oiler its possible to pump coolant instead of oil
If you locate the lathe against a wall then you need to move the coolant tank to outside of the base so you can access it.
John