OK, I ended up giving up my search and bit the bullet and went out to my LHBS this weekend. Ended up buying them out of all their MFL male and female connectors, some more CO2 and Beer disconnects, a air line distribution block, and some other odds and ends. Now my kegerator has the option of going from 3 sankeys to 3 corneys (or any combination of those on any tap). My portable setup can do 2 sankeys or 2 corneys, or one of each. This adaptability is something I have been striving for a while with my keg setup.
I still find it odd that the homebrewing community built on makeshifting everything settled for such an odd and individualized fitting connection.