I'm going down the Bosch route as my uprated pump, although not knackered, just cant flow enough above 5500 revs, the pressure drops by .5 bar.
I've sourced the pump from Harvey (
) and list of bits required to fit it from Bob Rawle (
) but wont be fitting it till early next year as I've got to do MOT, engine mount changes etc first. The bits for fitting cost abotu £50 from Demon Tweeks, they're good in that you'll prob just need to state you're fitting a Bosch ### to a scoob and they'll send you the parts.