Dan, I've been thinking since last night and I'm not sure what to do if you can't find out anything about the GF. I still think she's the best exposure candidate.
If you can ever get any kind of info like a name and you need the name of a fairly cheap PI, let me know. There's a guy I used in Va who only charged me $135 to do a basic search to find OMW's home address. I know a full blown PI can get pricey, but this guy will do searches for you over the phone and fax/email you the info.
Hope4us
Me - 49, W 49 S22 & S18 Dday 9/4/07 W claims NC 4/7/08 8/29/09 - Divorce Busted. Lots to work through, but we're going to make it.