Question in regards to gluing saya

[Al Massey 55]

What sort of glue would be recommended for a standard (non-shirasaya) scabbard, keeping in mind that the Saya is going to be lacquered later and obviously taking it apart for cleaning is not going to be routine? I don't want to damage the wood as it is old. The Saya has been needing repair for decades but I think I can salvage it as most of the damage is around the koiguchi and can be built up and reinforced with horn.

 

[Brian Dougherty 446]

If it is an older Saya, I would use a hide glue.