..."Can you find a masculinity requirement for apostolic succession?"...

Unfortunately, Pope JP 2 thought HE could, as do many others. Probably Council of Trent did, also. Mainly on the basis of 'that's how it has always been". The argument of "Jesus chose males to be Apostles' argument.
 
Mainly because our custom, as enshrined in Canon Law, restricts 'priestly ordination' only to 'Clergy'  - those in the 'clerical state'; and to get into that you have to be male, and celibate.

If you ever expect to get to your goal of ordaining women, I think it will be through the route of first ordaining 'laity' - men and women.