Thanks for your response, Ron. Actually, after much digging, and combing through Google searches for literally weeks, it appears, thanks to coreymj78 posting on http://premium.wpmudev.org/forums/topic/buddypress-on-all-blogs...
...that it is YOUR solution that may fit my needs since it allows me to purchase Network + ($25.95; smart move and hopefully supports the theory of "...you get what you pay for") which will allegedly permit me to create, with some sort of instructions and therefore...likelihood of success: Two or more separate networks of sites of which each can either be one big social network or one big network of many social sites but no more than than. Believe me, that's quite enough. I need just to have the former in each of my networks: One big social network with member, activity, sites, groups, etc. appearing in each site and having equally the same content.
If you can add more to this, have at it, Hoss.
So, getting to you (and Andrea) and the right answers to simple questions can take weeks which carries with it a lot of frustration over who knows what, and the perception that the other end is being "coy"...as in the second definition, below.
1. (esp. of a woman) Making a pretense of shyness or modesty that is intended to be alluring but is often regarded as irritating.
2. Reluctant to give details, esp. about something regarded as sensitive.
I am not necessarily ascribing this behavior to you and/or Andrea (after all, the gods finally pointed me in the final, right direction, yes?) but to the culture that has popped up around all of these marvelous solutions to communicating and social sharing in the 21st century. I am coming to believe that the world's best kept secret is that the average enlightened communicator can, today, bring nicely presented, ubiquitous and highly-social information to friends, family and prospects...on a literal shoestring of a budget...using WordPress having multiple sites and networks, awesome themes, terrific plugins and the simple uniting power of Buddypress.
I am about to do just that and let's hope your great offering and significantly less than coy approach send me on my way.
P.S. To the coy ones I can only suggest that you behave in the spirit of the software itself and be forthcoming about all, all the time. The Universe knows there is plenty for all and that sharing it is the goal. To "drip" it is counter-productive and, when one finds a true "sharer", such as Ron and Andrea, the Universe will reward you with happy customers from start to finish rather than those who experience significant speedbumps and potholes when it comes time to learn how you can benefit them. Always OVER-TEACH!