I think that this is the kit I bought. You do need to do some improvising, especially for the clear plastic fins. As I recall it comes with no clear plastic fins. You may need to cut astronaut view ports in the balsa nose cone. I don't think that it has the decals, but you can get decals from Sticker Shock. The Sticker Shock decals were beautiful being a full length wrap with silver mylar included. I found that putting the full wrap on at once was very difficult. I succeeded after cutting the wrap into sections.
Looking at the Semroc parts list I see that my comments above at not entirely correct. The model is the same size, but maybe an inch longer. The body tube diameter is the same. However, I see that they include clear plastic fins and decals. If I did this model from Semroc, it did not have some of these things when I bought it. The parts list does not show a plastic outer tube to attach the plastic fins to. The original Estes model did this. I bought a clear plastic tube from Apogee and did a Rube Goldberg method of fitting the plastic tube to the outside. Otherwise, the builder will need to do through-the-wall fins or glue the plastic fins to the paper tube.