Very cool you guys were into that. That's all I did as a kid, and my father too. I have models here dating back into the early to mid 60's, a few may be as old as the 1950's. It was a passion I picked up from my father, used to enter model building contests and have several trophies.
Bill, I bought that same 69 RS Z I bought from Hobby Lobby and my son built it a couple years ago.
I very carefully boxed up all mine and my fathers and stashed them away years ago, they fill half the shed. I wouldn't be surprised if there were more than 100 of them.