Thank you Klaus.
Will leave it as it is for the time being, all the rest runs perfect.
Next step is re-polishing the dust cover, which is complete and intact.
Only needs a new right top hinge. Will make a new attempt to make one out a piece of plastic (the material they use here for the "wine-in-box" handle, which is very resistant to folding). Just glue a small strip on the existing broken one. Only problem is finding the right glue (cyanolite doesn't hold).
Will advise if I find a suitable one.