Duane,
I just plug theboth batteries into the dual switch/charging switch and then one lead from the switch into the receiver battery port and the other lead into a spare servo port. Most of the time I try to make them plug into adjacent ports if possible, however, any spare servo port will do.
Now that I have worked on the kit, I still believe a two to four week build is possible. Granted, everything would have to be immediately available and extreme concentration and dedication would be called for,but heck they build complete houses in just seven days.

After the build began it became apparent to me that I would enjoy slowing down and follow the build thread. As it turns out I am glad I did. Lots of interesting and informative ideas and techniques. It's alot more fun with a group of you guys than all by my lonesome.
Tried to upload photos of rough dash layout but ran into a system error. Will try again later.