Rifle stock

I gotta thank you guys for answering my starter questions about CNC milling. You guys are the best!

OK, next question. Say I'm building a crossbow with a rifle-type stock, say 32" long, with some nice complex curves and I have a Taig. This is way beyond the handling capacity of the table. In fact the whole thing sounds like I would do best with a 4th axis anyways not just putting it flat on the table on its side. But even still, it's far too long.

Well first question is, I assume that even if this were something that fit on the table wouldn't we have 2 holders, one the powered 4th axis the other a free-rotating clamp? What is such a thing called, or do we just buy a cheap rotary table and remove the gears so it turns freely?

Actually I could see extending the table with some sort of holder to attach the free-rotating clamp off to the side with like a board clamped to the Taig's table. I later realized the rotary 4th axis clamp need not be directly clamped to the table either. Even still, this would require 3, maybe 4 runs due to the Taig's limits on X-distance.

Any comments? Is the idea sane at all, or should I limit myself to doing 3-axis milling with the work on its side? I suppose for the most part that would work. The trigger cavity and the track couldn't be carved in the same steps and there are limits to the features which could be carved into the edges, but then you don't always get what you want.

How much of a pain-in-the-ass is it to work with 6 different runs (3 per side) with the stock removed and re-clamped, re-aligned, but offset 12" each time to expose another area for milling? Would say BobCAD work with this plan or make it really really hard?

Danny