This is what I came up with: I think I need to change E7 to something else, dont know what yet.

V1:
Dm         F          C                   Bb    C       Dm      
I must go down to the seas again, to the lonely sea and the sky
Bb             F                Gm               A7
All I ask is a tall ship and a star to steer her by                                                                                                   
         Dm                   F                   C            Dm
And the wheel’s kick and the wind’s song and the white sails’ shaking
       Dm               C                Bb   C    Dm
And a grey mist on the sea’s face, and a grey dawn breaking

Riff:   |   F   F   C   C   |    Bb   C Dm   Dm