nice ideas all...............
It is very hard to fit the micro electronics in with the the center battery deck, fit my Supra but not the RSX-Mustang-350Z. its a little simpler when you Dbl-Sd tape to the batts and push those wires into the cavities. And working with just 2 aa's is somewhat easier.
Probably won't make another run in silver Tex as I am having to buy a full sheet to get the good stuff and at $350 bucks a pop, well you can see the economics.
Hadn't thought of extending the rear of the chassis, but you could buy 2 and give it a try or make your own extension and bolt it in place.
Thanks for the input