My goodness! How time passes. In September 2019, my 2nd wife was in a car accident (not her fault), which indirectly caused her to need a knee replacement (just before the Pandemic), I had to give up my substitute teaching job, ... I just got off track in regards to model building.
If Husky1943 is still around, in the 1960s and 1970s, NASCAR Sportsman cars were what later became Busch Series and then XFINITY. In the 1967 Sportsman race, which was my first auto race, the body styles ranged from 1955 - 1964. (That was the only time I got to see the 1955 - 1957 Chevies and Fords.)
On another thread, perhaps I can drop a few scanned photographic slides from the 1967 and 1969 NASCAR Sportsman races I attended at Lakewood Fairgrounds Speedway, in Atlanta. The photos might provide some ideas to others.