Looks like prices have risen since I last looked seriously at the going rate for XB9Rs.
I am planning to put mine up for sale any time now which is almost a dead ringer for the spec of that one and will save you £1000
It's not as pretty as that one because a previous owner has given it a naff carbon fibre wrap, the wheels need a good polish, it has a small dent in the down pipe and some general corrosion.
On the plus side it was MOT'd last week, has had a full 10k service to Buell spec (but not to Maz spec
) and I'm based just outside Milton Keynes.
I'm not technical but I have been around Buells and UKBEG for a long time