I think after 23 years I'd be looking for a brand new saddle...
Transfer width/profile and length measurements, from old to new, and be amazed at how much saddle material, ergonomic and construction processes have improved over the last 25 years!
Dealing with Shoo Goo/Gorilla Tape sticky/tacky surface repairs ain't no fun... especially in the sun! Melty!
You can get a brand new saddle for $50-100.
Much less if you get used.
Go ahead... "treat" yourself!