Nice Paint Job.
I did one of mine with a little more traditional paint scheme.
Very cool. I've always wanted to learn how to airbrush!
I'm thinking his Aerobee-Hi was the old Quest kit, rather than the recent Model Missiles Inc 50th Anniversary Reproduction kit by Quest.
https://www.rocketreviews.com/reviews/all/oop_qst_aerobee.shtml
A little bit bigger around and had a shorter plastic nose. But yes, he could've done a traditional scheme, as that was what was suggested on the header card.