@AtticusFinch: Oooh, Houdini looks cool. Will have to look into that. Thanks for the heads-up! And feel very free to join the discussion here, the more the merrier. 
@6ixpool: Thanks for the write-up, but I’m afraid that it’s still a bit above my paygrade. I did manage to find a McGuyver solution in the end though!
- I stuck a socket on a mesh, 100 units out in the X-axis.
- I then spawned that mesh into my blueprint, and read the socket location off that. Then I just had to rotate the mesh by 360 degrees divided by how many points I wanted. Then I just stuck my linetracer thing from last time on it, and destroyed the socket-mesh once the loop was complete. And voila, instant perfect procedural polygon with an arbitrary number of points that I can apply randomization to.
