There is going to be about 38 feet between power taps is this too much distance? I will have the power supply on a self contained cart to roll under the track and plug into the 3rd section joint..
And have a "removable-portable -bolt on" 3 foot long drivers panel that will have an 8 foot run of wires to the power supply (cart).. does this sound doable? This 8 foot bundle of wires could be sections of 16 gage extension cord, zip tied together to keep it neat...
Maybe have the power supply cart, and driver station incorporated just needs to inaccessible to children in the store? A lot to think about...
I even considered 3 independent drivers panels that could be mounted in different locations around the track like turn marshals...