Lehtonen retired at the end of last season, he was putrid for several years before that but there are going to be some good goalies out there, the problem is Hutton is signed for two more seasons so it is probably going to be the gong show of Ullmark/Hutton in net again. Ullmark, I like the comparison to Biron, he could be a long term mostly backup goalie so that is fair.
As for a few of your other points:
Skinner has not committed, one year in Buffalo he has
I was about to remind you that we do have some pretty good young talent and guys like Ristolainen, Dahlin, Eichel and Middlestadt are not chopped liver. Luukenen won for Rochester today. So he is playing in the AHL as did Miller and he could be Buffalo's goalie next year?
Well Lehtonen was a bad example. But there are guys available, or that can be made available in a similar situation. How about Quick? They have their new young goalie? But he would likely cost too much. There are others to consider without me digging through the rosters. I even wonder if Lundquist is still in the Rangers plans? There are some good goalies that will be available. But if this kid from Finland works out? Who knows. Maybe he is our next guy? Luukinen or something like that