This was an interesting model, available only to members of the Estes Aerospace Club or E.A.C. It appears it was designed using pre-existing kit parts.
The Firecat had an Honest John style nose cone, but not the nose cone from the Estes K-27 Honest John kit. This nose cone was one piece balsa like the Centuri Honest John, not a shrouded base as in the Estes kit.
The decals came from the Bandit kit. The instructions mention the (optional) delicate antenna on top of the raceway strip cutting pattern.
To see the instructions: CLICK HERE
The ramjet tube (Part N) is a BT-48BE tube at .928" diameter. I scanned the body tube lists and couldn't find it in any other kit: CLICK HERE
Does anybody recall in what other kit the BT-48 was used?
I was a member of the Estes Aerospace Club and had the first club model, the Viper. (That was not a fun model to mask, let alone find the right color shades to match the decal colors.)
Estes had mentioned there would be models available only to E.A.C. members. I only remember two EAC "Members Only" kits, the Viper and the Firecat.