Query on Swiss Pass

Hi, just looking for some advice on passes in Switzerland this June.

There will be two of us, both 24yrs old. One travelling from the USA, and I'll be travelling from Ireland.

The plan is to fly to Geneva, spend 2 days there. We will be getting a tram to CERN, and also the bus out to Veyrier to visit Mont Saleve. (I guess the pass wouldn't cover the cable car there as its across the border?)

Then we plan to go to Lucerne. From there we plan to take a train to Alpenachstad, take the cog railway up to Mt Pilatus, and get the cable cars down the other side. Then get a bus back to Lucerne. Possibly also go on a steamboat on the Lake.

Then we plan to get a train to Zurich to connect to another train to Salzburg. Would the swiss pass cover this? I have checked that train out on sbb.ch and it is direct for the time we want to get it, so we would not have to switch trains anywhere between Zurich and Salzburg.

(We will also be getting a few more trains in Austria and then a train to Venice which will be our final destination)

Any recommendations on the passes?

Oh also one last question, I know the Swiss Saver Pass covers travel for two people together. Does that mean you only have to buy one ticket for 200€, or however much it is, and that covers you both? Or does the other person have to get a second ticket regardless (as wouldn't that cover the travel for 4 people?)

Thanks in advance for your help =)