911R to be shown at RENNfest this weekend

A NC dealer is showing no. 17 of the 911R cars at the RENNFEST. This was a car found by Dr. Warren Eads in Mexico. I am a historian interested in how he came across it and what was paid, if anybody remembers that far. I lost a chance to buy one for $7000 in 1970 when an actor down on his luck was selling it near the Sunset Strip in West Hollywood but didn't realize it wasn't just someone's custom car.
The ownership chain is:
1967 Porsche Typ 911R
Chassis No. 118 990 17
Engine No. 508 0019

Chassis No. 118 990 17 ownership history:


1970: Sold from Porsche to Victor Hugo O’Farrill Avila (Mexico)
1971: Ruben Novoa (Mexico) Raced 6 Hours of Mexico

1973: Nacho Posada (Puebla, Mexico) Flares added and painted green

1985: Warren Eads, Californi

1990: Peter Kitchak. Minnesota

2013: The Ingram Collection, North Carolina