I think Neimi and Jones will get the majority of starts in Dal and SJ; these teams didn't go out and get them to be back ups. I'd take a chance of them...
My personal view is that in H2H, it's dangerous to get 2 goalies from a projected tandem. Say both your goalies split the duties 60/40, that could mean losing 2-3 starts per week (and more in 4 games weeks)...
I would definitely try to find myself a clear cut #1 goalie in your situation. If Malkin is what it takes to get Rinne, I'd do it. He's elite and will be for a few more years. I'd also target the other sure top Gs if the Rinne owner doesn't bite (Holtby, Price, Fleury) if you have a chance.
Don't sell short on Malkin though (i.e. don't target unproven goalies or ones that are at risk of losing their job in the near future - Dubnyk, Bishop come to mind)