Well after some printing issues, I finally have 3 fins! And it worked. I am considering creating mold of these to make creating replacements easier! Also, thinking of putting a layer of fiberglassing on the fins.
The recovery hardpoint. Its meant to be glued to the motor mount tube and then screwed into the sidewalls of the outside tube. I had a previous version that was just going to be screwed to the outside tube only, however I was a bit concerned about forces torqueing on the tube and causing it to buckle or crinkle.
And then the bottom which has the attachment point for a bulkhead that will have a eyebolt for recovery attachment. It also allows for holding a gps, and/or altimeter within the nose cone. Working on that sled to hold both the gps and altimeter - its based on the size of a bt60 body tube (for reuse in some of my other rockets)