Bosch makes some very good tools and are highly recommended. But, you can't make a silk purse out of a sow's ear. By that I mean, shuffling a bigger cutting tool around an x/y/z axis requires bigger servos and bigger servo controllers. The software to control such things doesn't change much, but the hardware certainly does. That's why you don't see too many guys with that kind of tool in the shop. It can get stupid expensive. Unless you're in production mode where the tool is turning out product relentlessly, it's really tough to justify.
There are some machines out there you can get in the $5K range that will do what you ask, but you usually have to add the computer and software after the fact. So, figure another $3K or so. On the plus side, you can make bodies/necks for next to nothing, relative to what you'd pay for retail suppliers like Warmoth, USACG, Mighty MIte, et al. So, if you think you have a market, it's a good investment.
