Finally got a delivery from China. It is the new Arduino Mega 2560 R3 compatible MCU along with a the v2 Sensor Shield. (this combination had the same pin to usb short I discussed in an earlier post. Be sure to check that post for the fix or it will fry your mega 2560! (Arduino Mega 2560 shorts against v2 Sensor Shield)
It took a couple weeks to be delivered, but the price is less than a quarter of what the cheapest price vendors are offering it here in the U. S.. Not only do a lot of local vendors order them from china, but a lot of auction sellers will take your money and have it drop shipped from china. Well worth it to do some research and cut out the middle-man!
Now that I started to put the components into the battery box, it is getting very tight with the new SLA 12Ah 12v battery. The solution is to build a multi-level control board that will slip right in beside the battery. Seems like it works very well, but it might get a little tight after I start adding sensors and more wiring.