1/4

I'm planning to clean up this galaxy 12 when the weather warms up.

Everything moves ok. Just really gunked up.

But I do need to either track down or diy a "paper guide"... if that's the right name for it. (Pic 2)

And figure our what nevertheless weird piece is that was rattling around the carry case. (Pic 3-4)

Any tips and tricks for a future newbie restorer.

P.S. has anyone ever made molds of old plastic bits and recast them for restoration?