Ya that's reasonable. Saros' contract situation is unfortunately bound to make Ottawa fans nervous and limit what they're willing to give up.
Greig, Ostapchuk, Thomson/JBD/Brannstrom and a 1st move the needle? I'd happily do something like that for Saros.
We've moved a lot of pieces out over the years and if there's one thing I've come to realize and accept, it's that you rarely get back one piece of similar value, especially with contracts looming. Basically everyone we dealt (Karlsson, Hoffman, Stone, Duchene, Etc.) went for multiple lesser pieces being magic beans, or just lesser pieces in general like the Hoffman trade.