This page has all you need. The Mobil Vactra #2 should be good for the ways and screws. I use Oakflo DSS800 in my CNC mill and it's great for all materials. I doubt you'd want 5 gallons of concentrate, so you have Trim or Rustlick to choose from. My neighbor made up a spray bottle of Trim E206 for his bridgeport well over a year ago and I unscrewed the sprayer recently and it was not at all rancid, so I'd recommend that. It has good lubricity for all materials. WS-5050 is used by lots of people too, but more money. If you look around, you can find a code for free shipping over $25 and really be doing well.
http://www.use-enco.com/CGI/INPDFF?P...LMPA&PMCTLG=01