I am sure you are way ahead of me on what's available for your project, but in case you are not aware that glossae.net does have Rusch version of Galatians in a handy transcribed version on PDF here
http://glossae.net/sites/default/files/GO_63_Ad_Galatas.pdfThey don't have Ephesians on PDF yet but it is in preparations. Sometimes they have a rough draft done but are double checking it. They would probably send you what they have if you are interested. They are quite generous when it comes to that. Marjorie Burghart is very helpful marjorie.burghart@ehess.fr