Looking for my old Demon

Has anyone seen this or know were it is? I sold it to a person in 1980 that was going to BYU in Utah and saw it once in Pleasanton Cal. Buckets,A/C,PS,PDB,Rallye dash, Tuff wheel, Center consul. Non-Matching 340 engine, A/T was original Last Cali plate was "EL DEMON" Undercoating was scraped off (Went Racing) Any help locating it would be appreciated.
Thanks for looking

lastscan Demon.jpg