I think the IH turnkey CNC is north of 10k. There is a guy in the IH section that has one for sale for $4900.00 with tooling, software and some other stuff that goes with it.
IDK where you are located but if its within your reach you had better act quick. These machines do not stay around because they are so good and hard to get.
Just to get yiu thinking, starting from scratch you will spend a couple grand to get productive just because of tooling, workholding, measuring equipment and other needs. Not counting shipping, at the price of the setup listed above you will save possibly 10k depending on what he has in total ( software mainly).
SO if you buy new and only have 7k you really need to consider buying a manual machine & doing a conversion. Or you want have enough to get the machine productive. So that used machine is a steel, plus there is not many machines that will get you over 20" of travel so your choices are few.
I will post back with some other info on other machines and possible routes but I would check into that IH CNC machine right now ( its listed in the IH section below this section).
Jess