>I'm looking into the price and availability of the proper die.<
Andy W.,
This round split die is close (see link below), perhaps it could be 'expanded' (or adjusted?) to the correct diameter, I believe the thread pitch (or '40' threads per inch) is correct ..... what do you think? The price is right too maybe?
http://www1.mscdirect.com/CGI/NNSRIT...PMT4NO=9925649