Chaps,
Yup, running stock 748R caliper but have since moved to SBS pads. Bendix, Carbon Lorraine will work equally as well.
So far as sources for the Brakings.........
Try Talon Engineering. They're the UK distributor for Braking Wave Disks
http://www.talon-eng.co.uk/ Rhencullen do them too although I found Talon had a better stock so I got the one's for my 748R straight away whereas with Rhencullen, I'd have had to get them ordered in (no doubt from Talon anyway).