Although 'The Singing Sailor' itself is not included in that incredible MacColl archive on Bandcamp, I've a feeling that all the tracks from it can be found on the two Wattle LPs that are in the archive, 'Singing Sailors', and 'Shanties and Fo'c'sle Songs' (see links above).

The tracks from 'The Singing Sailor' were recycled endlessly, as detailed on Reinhard's invaluable page about the record:

'The Singing Sailor' on Mainly Norfolk.