1100 sport corsa WP Front Fork refurb

Hello all,

I’m in the middle of a front fork refurb of my 1100 sporti but it seems that the top and bottom bushes for these forks are no longer available.
I can get the oils seals but all the Guzzi part suppliers I’ve checked say that the bushes are “out of production”. The Guzzi part numbers are GU01530542 and GU01530550.

Has anyone else come across this problem and found a solution?

Specialist fork people like Maxton or others may be able to advise as its White Power then its likely to be a standard bush. If not then an engineer could knock up some.