Power steering seal kit available from UK dealer?

[rob hod]

    The PS pump (PN 034 145 155D) on my '88 100 is starting to froth at the
X caps.

    I guess subject line says it all, except to say that my friendly parts
counter man at the dealer tells me that it's not available from him. I seem
to notice people saying on-list that they've got hold of the kits quite
happily, is this because the kits are available in the US and not the UK?

    While I'm at it, if I were to get hold of a kit , what is the
recommended method of dealing with the X caps , is it just to use a BF
screwdriver?

    Alternatively , any UK listers know of any good likely 2nd hand sources,
or rebuilders (apart from Sanburn, Coventry whom I already know about)

    Thanks,

    Rob

    PS the goo2 fluid is down to about £6 a litre at the dealers, whoopee!!