I've restored my own parker 25s and I have some parts left over.

I've got a black clip, with a faded parker logo.

I've also got a blue m nib-section. This is the one with a hole in the nib. It's a reliable writer, but it was (is) too dry for my taste. I bought a new section from the battersea penhome, who adjusted the flow on my new nib to be a wet writer.
Strangely, this nib is a bit more flexible than my new nib (which doesn't have the hole in the nib).

I'm asking $15 for the nib section, shipping at cost (worldwide shipping will be in the €3/$5 range)

I don't know what to ask for the clip embarrassed_smile.gif Maybe a postcard, or some ink-cartridges?