Most of the Ghost saddles have interchangeable seats as long as the seat size remains the same. Classic and Cavallin lines don't all transfer. This is a great way to have an entirely different saddle for summer vs winter or show ring vs trail or a synthetic seat for rainy weather.
Prices start at $340, check individual model for associated price. If you want premium Julia or Nappa leather or other extras (link below) contact me to get total pricing and I'll send you to the invoice page for final payment.