When I spoke to OM GF she wanted the same thing. Be careful what you give up...you don't want to get yourself in any extra trouble.
Agreed. "Less is more" when it comes to these things. Give her the LEAST in quantity, but the most damning piece of intel that you have, and leave it at that. If she wants more, tell her your atty advised you not to even give her that.
I'm sorry to hear about your D16 in tears -- it breaks my heart. My two girls were 18 and 20 when their mother had her affair last summer, and it was tough on them, esp. D18. It "helped" that they both knew about the affair in that they knew there were very strong reasons for their parents' disconnect and tension.
