So after the weirdnesses with printing some of these parts (and learning some good lessons) I now have this:
These are all the parts ready to glue together. (Note, for V1.0, this rocket has some tiny tabs and slots in places, but they are for guidance only at this point. Later, I will make them so they slot together much better, and that will align them, hopefully. For now, I’m using Superglue and masking tape to hold the alignment until the glue hardens.
I anticipate some ill-fitting because gluing of parts can be a bit arbitrary, and a tiny bit of a degree off can cause some misalignment. The aforementioned better slotting should take care of that in V2.0, which I probably won’t work on until later in the summer.