Make sure you check out Ponty Bone's Beltrami accordion.. it's the biz for sure.

If you found a Grey Soprani.. and in B/C or other Irish tuning.. and flat keyboard... those accordions sell for $3,500..

If stepped keyboard and in G/C or other fifths tuning ( A/D or D/G or C/F ) then worth a fraction of the other type.

Good luck-- Old Soprani's are the next best thing.

G.

This Soprani is red, tuned F/B-flat, non stepped keyboard. Single shoulder strap but No thumb strap, but it has a great groove along the edge of the keyboard to slide your thumb in. It sounds fabulous. I think I may go buy it today. It is only $750 and has been recently tuned by Castiglione.