Editing?  Not really, though we (The  South Riding Folk Network)  are negotiating with the  English Folk Dance and Song Society  about re-publishing the folksong collections they put out in the 1960s and '70s.  My role there would be mostly to do with design, though there would be a small amount of editorial work involved, too, if all the copyright issues can be resolved.

So far as  Sailor With Banjo  goes, I can only add that there are currently copies of that and two other books by Hamish MacLaren listed through  Bookfinder.com,  the other two being Cockalorum and The Private Opinions of a British Blue Jacket

Malcolm