EFDSS have moved out of publishing (apart from their 2 periodicals and educational stuff online). Pluto is one alternative. But also Francis Boutle Publishers, who have just published the new edition of Frank Purslow's The Wanton Seed. That was also helped by a crowdfunding/subscription scheme. The publisher, Clive Boutle, is a folk enthusiast who has published books on Cornish culture, language and a couple of other folk books.....
Mike - let me know if you want more details....
Derek