Hello!
Here is my passenger plane project and still working on. It was originated from a good quality obj with the mesh rebuild by quad remesh. I did 400+ quadremesh and re adjustment to this stage. I always emphasis on making as one piece of surface as possible, as you can see there is alots of panelines put on the surfaces, any adjustment from client would be a nightmare. After the resurface done, I found that the original mesh is not in correct shape, I compare images from internet and adjust every bit. I used 2-3 weeks to resurface to first result, and lateron used another 3 weeks to fix the overall shapes.
that looks awesome 
I’m similar, I like those types of challenges. Especially cause Rhino makes if fun! 
Yes challenge and explore is good, if time is not an issue. I work for my boss and I have to think of all possibilities for efficiency and easier processing especially making shape changes on mass details…
I used Rhino since Version 4. I always use a few commands before. Job nature change and I need more knowledges now. Lets explore Rhino together 