For sure he is at the top of my prospect list but I'm not sold on his skating. I doubt he will have the speed to play effectively with Barzal and if Lee is resigned then there will not be a top 6 spot for him. Assuming JT signs I would trade Lee for D and trade up for Wahlstrom.
Bailey-JT-Wahlstrom
Beau-Barzal-Eberle
That makes Bellows a third liner or trade bait.
If it takes trading Lee to land a top defenseman and add some balance to the roster, I could live with that since Bellows is a possible cheaper alternative.
I would also be very happy landing Wahlstrom - assuming the price to trade up isn't prohibitive. I believe that the Isles should make sure to come away with at least one of the top names from this draft, as long as the cost is capped at one of the second rounders or so. Be it a defenseman or forward, they need to get at least one clear blue-chip prospect.
However, I would say that I would rather see Beau, Bellows and Ladd compete for the two top LW spots this season and let Wahlstrom (or another top forward out of this draft) take their time. No need to rush anyone now.
Keep Bailey at RW1 this season and then, if say Wahlstrom shows he is ready in a year or so, then you can move Bailey down to the third line and role three top lines.
Of course to do that they need to find a better 3C than Nelson, who I would look to move in a package for a better fit overall. I would love to see Nelson+ moved for Artem Anisimov.
In a year or so you could see -
Bellows - JT - Wahlstrom
Beau - Barzal - Eberle
Ladd - Anisimov - Bailey
Plus another quality defender added to the overall depth already on the roster and/or in the pipeline.