Depending on your cadcam system, it might be worth it to plan to make your table as a simple indexing unit. By this, I mean a tilting yoke sort of construction that would allow you to pull a pin, and tilt the table, by a fixed increment of degrees. Then, tilt the model in your cadcam to expose the side of the model in the new position and 3d machine it. I'm not thinking of only face milling large flat areas (which would require exact angle setting), but rather to bring the required Z depth and surface access to a more reasonable distance.
By incorporating elevating mechanisms (like a knee mill table), you could bring the work zone of the table within reach of the spindle.
Basically, it would be like a poor man's 4th axis, without the expense of making a huge rotary indexer.
First you get good, then you get fast. Then grouchiness sets in.
(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)