ARP Quadra Synthesizer For Sale or Trade (Valencia)

Vintage ARP Quadra analog synthesizer for sale or trade.
Cosmetic condition is excellent.
Powers on and produces sound, touch membrane works, but will need a recap and several sliders replaced.
I am open to reasonable cash offers as well as partial trades plus cash.
The only trade items of interest are a Prophet VS rack or keyboard, Voyetra 8, vintage outboard studio gear, high end effects devices, and vintage tube microphones.
Serious inquiries only.