opinoins on a royal king saddle

A new Royal King Shelby Training Saddle typically costs around $650 - $700 or so.

If this one is $125 + fender replacement cost ($100 - $200 depending) then I suppose you'll have to decide if it's worth it.

I'd say if the fender/stirrup leathers weren't in need of repair/replacement that it would probably be worth around $375 - $400 or so.