Questions regarding makita 2708 table saw

I recently acquired a makita 2708 table saw that isn’t in the best of shape, but it works and is my first introduction to table saws.
The paint on the table was in bad shape so I stripped it down to bare aluminum. I would like to keep it bare and not repaint it, but I’m not sure this is wise. I made sure it’s still flat and was planning on just covering with paste wax and recoating when needed. Is this ok to do? What are the downsides to this?
Also, it came with a Rousseau fence that is well used, not square, and a little rusty. I can take care of the rust, but the set screws are missing and I was wondering if some simple same size machine screws would be sufficient as a replacement. Or should I just replace the fence all together? I’ve looked up replacement parts for it but that’s a no go so far.
Tips? Advice?