5H17 said:
dont i need two more though, as per the last image I posted?
No, you only need 2 insulated sections, if you follow my plan, as marked in yellow.
Fit the insulators on both rails at both ends. Connect this isolated section to the output of your Lenz reversal module, and the input to either the 'main line, or the controller output. I don't have any experience of the Lenz modules myself, but they should be simple enough to wire up....