I think you should go for the experience not for the expectation of catching a 40-60# salmon. I've only been over there for work but theres something very special about the west side of Haida Gwaii.
The run across the Hecate in the summer should be ok. You're an experienced boater and would pay attention to marine forecasts and common sense (don't go at night!) so I feel there's no issue.
The skidigate narrows transit is somewhat unique. Just go at high water and stay on your marks. Tug, fish and sailboats go through there so you should have no issue given your draft compared to theirs.
A valuable resource for a trip like this would be the Sailing Directions publication.
The run across the Hecate in the summer should be ok. You're an experienced boater and would pay attention to marine forecasts and common sense (don't go at night!) so I feel there's no issue.
The skidigate narrows transit is somewhat unique. Just go at high water and stay on your marks. Tug, fish and sailboats go through there so you should have no issue given your draft compared to theirs.
A valuable resource for a trip like this would be the Sailing Directions publication.