Please read this as I have stated: I already have enough batteries, motors, controllers and joysticks to make several wheelchairs already "buried and insulated" in a Faraday Cage.
So? Read what others have posted in regards the whole picture... Riddle me this, what good is a replacment speed controller, if your motors or batteries are toast? You need it all or else you are not going anywhere... And if you say you are going to go get new motors and batteries out of your bunker, get a new controller at the same time you kinda need them all to gain functionality...
You seem to want us to tell you what you want to hear, not what we have to say...
At this point I'm going to consider you trolling...