Even though larger machines are preferable, keep in mind that over the years, mounting an heavy divider on the milling machine table can become too much of a chore...yes, it's true.
Fortunately, I still get a lot of enjoyment out of my little Sakai 210 mill, drill & lathe... I would like a little more space on the workbench, but this setup allows me to spend hours in this small workshop. There are plenty of other solutions with this size of equipment, Toyo, Emco Unimat3, 4, UnimatSL; Sherline lathes & mills... not always cheaper, but all capable of building models from stock or castings.