I recently received an old, somewhat beaten down G-Scale Classic Rail (Echo Toys) battery Powered Train Set from my Grandmother. It still works, but the locomotive isn't very powerful, it doesn't have variable speed, and it doesn't connect to a wireless controller. I know this might sound like an impossible task, but I want to upgrade this little locomotive (a 2-6-0 Mogul) giving it variable speed, radio control, and a LOT more pulling power. Does anyone have any advice on how to do this? Video tutorials would be most appreciated, but lengthy text descriptions are also gladly welcomed. Links to necessary parts for the procedure are also highly encouraged.