I recently (as in this afternoon) finished renovating my old 12 string Ibanez Artist. I have had it for about 28 years and the first 4 frets were severely worn, the nut was damaged, the bridge was damaged and the old Fishman pickup needed a pre-amp.

Old headgear, new nut & strings (G octave is purposely missing)

New nut and frets

New frets

New bridge and new Fishman piezo underbridge pickup (not visible)

New Fishman pre-amp built in

Complete Guitar

Complete Guitar

Split back with ornate join

EDIT: a better (less blured) dhot of the back

...and side