I think PV would possibly go for that...could you toss in future considerations to round it out?
In the 'other' Gibson thread it's been thoroughly hashed out that that 'might' be a starting point but there has to be a very good NHL ready/almost ready player in there too, especially with even minimal retention. 50% retention will be even more (to be fair, most of the 1st discussion has been based on this years presumably weaker draft).
If Gibson is traded, the Ducks will need to get a backup goalie somewhere, so Skinner coming back isn't necessarily a horrible thing ... but it would be a severe downgrade in the goalie duo for the Ducks so his value, while not completely negative isn't really much of a positive either. A presumably very late 1st round pick doesn't really have the value that people around here seem to insist it does. At that point in the draft (late 1st, early 2nd), history shows that it's about a 50% chance that the pick will even play more than a handful of games in the NHL...it's not worth 'that' much. Skinner & a 1st would cover the retention & a bit of Gibson himself... but there needs to be a whole lot more to get the rest of Gibson. (and that doesn't factor in using a retention slot for multiple years...when they're already using one on Fowler & planning on trading over the next couple of weeks where those 2 slots would be useful for this year. That's not to say it can't be done, but it isn't free)
Then there's the behind the scenes stuff. Dostal will need a new contract at the end of the year. If he's going to be 'the guy' and the Ducks are paying whatever they are for his new back up plus retention on Gibson. With no other options available he's going to (justifiably) want more than that. If Gibson is gone it's suddenly the Boston situation all over again (as a RFA he can't push things too far, but if they screw him over it will be remembered...). Keeping Gibson through this season (at least) is far better for Anaheim (or at least the GM...). If paying Dostal, the backup, & retention is more expensive than keeping Gibson & signing Dostal to a solid but not over a barrel contract, there really is no reason to downgrade their goalie situation.
So there's really no reason for Verbeek to change from his oft stated "Sure, I'll listen to offers, that's my job. But if you want him it's going to be expensive" position.
And of course this all presumes that Gibson would be willing to waive his NTC for Edmonton (he probably would)
(zero idea if that offer would be attractive to St. Louis. If it is, more power to them - the Ducks don't 'have' to get rid of Gibson immediately)