These are the chords I use. I'm sticking with the horse at Skavaig. I recollect finding that the horse at Skavaig was as whirlpool but I can't be bothered re-researching it.

Capo 3 : G chords

I can see the [G]boats at Mallaig from [C]Lewis and the Clyde
Low down in the [G]water to the harbour with the [C]tide
I can [G]see the horse at Scavaig from the [C]'Stormdrift' at the dawn
With a hundred cran of [G]herring
But the [C]fishing [D]days are [G]gone

Chorus:
They [G]ploughed the sea and they [C]reaped the silver [G]corn
There were [C]hard days and [G]bitter ways to [C]greet the frosty [D]morn         
They ploughed the [G]sea and they [C]reaped the silver [G]corn
They made [C]hard lives and [G]bitter wives
But the [C]fishing [D]days are [G]gone