I think the chords close to the original should be:

With a (G)dark and rolling (Em)sea
Between (G)my true love and (Em)me,
I keep (G)walking through this cold (D7/F#)hard (G)town.

While I (G)wait for better (Em)days,
I could (G)use a place to (Em)stay,
Or a (G)floor where I could lay my (D7/F#)blanket (G)down.

(C)If I could beg, steal or (G)borrow
A (C)ticket on some ship or (G)pla-(D/F#)ne,
(Em)I'd be leaving (C)London to-(G)morrow
To (C)fly to my (D7/F#)own love a-(G)gain.