Thank you for your response, Dr. Mike. Firstly, as an engineer myself I'm sorry if I ask or say anything that truly shows my lack of knowledge in this area, I will try and research everything you ask such that I can communicate effectively.
The microarchitecture is probably a bit beyond what I'll be capable of reproducing with my printer, but It would be useful if I could extract the boundary of the compact bone to the medullary cavity/spongy bone. Whilst not truly mimcry, being able to print compact bone in one density and spongy bone in another should serve my purposes. Extracting just this boundary should also serve to reduce the size of the would be STL. Do you think this is achievable?