For a 1man lab might want to go with something that will be easy to run and maintain. We run 2 VHF 4 axis mills one for ZR and one for WAX, no issues once I worked all the bugs and tweaked the mills a bit. I am very hands on and dig deep to learn the mills and therefore can fix things with out major tech support, some poeple just don't have the talent to do the same. But for a person getting into CAM end of things I would highly suggest going with either the New Roland DWX-51D of a VHF S1 (5 axis). Yeah a tad more the the 4axis version but worth it in the long run, not too big of a footprint either. Here is my buddies lab I recently setup.
2 VHF 5axis S1 and a D1000 scanner with two added design station, and a sintering oven from Talladium just to get thim started, we are adding a better oven in the near future, possible a Mihm Vogt.
Roland doesn't come with a Cam but the VHF does, Roland you will need a 3rd party cam either Sum3D or Hyperdent additional 6K-7K.
both are 5axis with mechanical touch off and hold more then enough tools then you will ever need.
Both are built solid like a German tank.
Roland has a feature to stop PMMA shavings from sticking to the inner wall, which can be a pita to clean if your not ready for it. LOL
For Roldan I would go to CAP, for a VHF I would go with Talladium, they knows those mills inside out like CAP knows the Roland.
When investing in a CAM system Do NOT cut any corners, you will pay for it dearly in the long run!
Can not stress the support end any more then everyone else go with some one that can help you out when crap hits the fan, and it will, for first time users. Once you get the hang of things you will figure stuff out on your own.
Do your research, do not rush into a impulse purchase. Both mills will be at chicago and must likely running demos.