Hivemind
We're Touched
None of those G's you mentioned offer any real bang for the buck. Bishop is bound to get overpaid, Fleury is already overpaid, Halak and Mason are both "meh" with a capital M. Varlamov is the only real one that any team is going to want, especially Vegas....and he has his warts. And would cost more in $$$ thsn Grubauer.
It will really boil down to what George wants. If he wants Grubuaer bad enough, he could easily take Orpik in a separate deal with an assurance we leave Grubauer available. If he doesn't, then we see what the market is for Grubs, and allow him to take someone else, like Schmidt or Wilson. Or they stand pat and try to deal Orpik elsewhere, and lose Grubauer anyway.
My point was the Capitals don't really have any negotiating leverage with other teams prior to the expansion draft. No team is going to pay top dollar for Grubauer when there are so many other options out there, many of which can be had without giving up assets. If the Caps trade Grubby before the expansion draft, it's unlikely they'll be able to get the type of return that similar goaltenders (Martin Jones) got.