i paid nearly £1000 for mine brand new 3/4 years ago. I really don't think £375 is unreasonable tbh, if it's in good condition then that's a good price
i'd certainly want more than that if i sold my saddle!
My princess, Bonnie, 28/7/06 loved and missed by us all
16.5 inch wintec 500, brown, immaculate and barely used complete with 3 gullets and synthetic leathers, £150 ono excl postage