I read your post and I have some ideas for you but this is not the best place to discuss so much details. You can text me at email@example.com
and I can lead you more towards different spots for self training. You also must understand that large detailed 3d cuttings take lots of machining time, so you must balance your design detail with the amount of time to profitability you think you project can produce. You also have to realize some of your projects may require small amounts of hand carving to clean out the inside small radius the the cutters simply can't provide.
St Louis, MO USA