After being inspired by this thread: https://www.rocketryforum.com/threads/can-we-save-this-estes-pershing-1a.150649/
and finding scale data here: https://www.rocketryforum.com/threads/scratch-built-5-25-pershing-1a-built-with-foam.120203/
I decided this was a perfect time to use my old BT-101...