Skytop, I figure you could get away with spending a bunch less money and still ending up with more of a mill (and tooling) than you need or are able to put to use, but if you can afford it, I say pick the one you like best and have a great time making chips and learning to run it.
Of the 3 kijiji mills posted, the Modern one is the only one I would drive across town to look at. The CNC is an obese antique, and aside from having the capability to suck your bank account dry the first time it breaks down (which it will, eventually), it will require more space and more power than most guys have. The First machine would be the second place by a long shot just on the voltage issues. I have used a few First knee mills and they were OK. I wasn't on the hook to fix them if they broke though, either. Again, thinking from the perspective as a Hobbyist, even if an advanced one, rather than as a guy trying to make a living at it. Unless you have some background in Industrial electrics, or are willing to learn on the fly, you don't need the headaches. Gotta decide if you want a hobby of rebuilding machine tools, or running them for your needs, too.
Spending the bosses money, when you are not making the actual payments out of your own bank account, is really easy, and nothing but the best will do, when it's being paid for by someone else!
What is needed or wanted in a job shop is different than what would be needed in a home one. Even if we all want nothing but the best!
Me, my 'perfect' manual mill is looking a lot like a Deckel FP2 or Schaublin 13 kind of unit, with a Schaublin 135 or 150 as a lathe to go with. Maybe a Wieler lathe. If I had to.

I can dream. In the meantime, I get along alright with the small tools in my basement, and have a larger lathe and a CNC knee mill in storage until I can find my arse with both hands and organize a shop for them.
My experience has been that guys that have spent time running the lightweight lathes and mills seem to have a far easier time converting over to 'real' machine tools, but I have met a lot of guys that were flat out not able to adapt to running lighter machines than they had learned upon. When you need to make one part right, and not a hundred or more of the same part a day, you usually have the time to figure out how to work with what you have, no matter how much it gets poo-pooed by the peanut gallery.
Choosing how to spend one's own money, is a bloody miserable row to hoe!

Try to sort out what best fits your needs.
Cheers
Trev