OK Boss, here is some items to chew on that might help with the 4" Archer 14 by Estes which was around 57.8" Long as compared to the very old pre-estes model by NCR that may have been the 62" normally referred to, even by NCR Estes. I included a copy of the NCR Estes data sheet that shows the rocket was 57.8" long and not 62" when made under NCR Estes. I don't have the measurements for the decal sheets, you may be able to work this out or just get with Sticker Shock
If you have Rocsim, I included to files, one from online and one I worked up some time ago. I can tell you that the forward fins are made from 1/4" balsa.
I'm not a expert on this model but I don't believe the newer 2.6" Archer 14 is a true down scale of the 4" model.
Hope this helps!