What can't be restored on an older Bridgeport mill?

Hello all,

I'm a novice looking to buy my first milling machine. I have read a lot about what to look for when buying a used mill but I'm not very confident that I'll catch all of the issues when I go to actually buy one.

My question is, with old Bridgeport type mills, what typical wear can and can't be easily fixed or restored? Table wear, ways, gibs, quill? If I buy a mill and get it home to realize I have worn ways am I just totally hosed or can they be rescraped etc? My goal being to eventually have a mill that functions like new.

Thank you for the input.