In '60 the Ranchero was based off the Falcon chassie til the early '70s. The engine family used in the Falcon/Ranchero/Mustang was the 144/170 Special/200/250 I-6's, w/ a Special Order Option of the 289 v-8.
Value depands on the overall condition, None drivable/missing parts, $50.00, to only driven on Sundays to Church/Pick-nicks all original, $20,000.00 plus.
We'll need to view some Pix from you & a better description in order to give you a better Guesstimation of the Olde Girls value.