I am trying to build a simple boat. The boat is basically a 3’ X 4’ X 9" plastic float (usually used for floating docks) with 2 motorized paddle wheels. Here is a parts list that I have put together based on the tutorials available on the RobotShop website. I would appreciate it if someone would take a moment to consider the list and let me know if it looks reasonable.
Mightymax ML50-12 Volt 50 AH Battery - 2 @ $109.99
Makermotor 3/8" D Shaft 12V DC Reversible Electric Gear Motor 100 RPM - 2 @ $79.00
#2507 Pololu Dual VNH5019 Motor Driver Shield for Arduino - 1 @ $119.95
SparkFun XBee Shield - 1 @ $18.50
XBee 3 Module - U.FL Antenna - 1 @ $21.50