help looking for dads 1973 rally challenger

please help im running out of ideas trying to find my dads 1973 340 ralley challenger that he sold around 1979-80 i have the vin number for the car my dad passed away in 2001 at the age of 47 and have been searching ever since please help me would love to find the car of know what happen to it. the car was autumn bronze in color with black top and side strobes. JH23H3B435020 is vin no matter what condition would love to know were car is thanks again Darren