I made the guy an offer (Dutch Ebay-like site) for the governor, an injector (grade not known, but may be "1" according to what's on the box) and a turbo-hose (the one with the crank case breather that went soft on Hobbyhorse's D5). All items are new.
I he doesn't accept or counter-offer something reasonable, I will gladly take you up on your offer!
@ Bernard: thanks for the advice, will have a look. Your (UK) market is a lot bigger than our (Dutch) market, so it may be worth paying some extra shipping for parts! My local breaker doesn't have D5's yet