2010 CrewMax - Run Cable from Battery to Rear of Cab

I'm removing my rear seats and placing a AC200L+BLUETTI Battery and DC Charger 1 in the back area of the cab (among other things) I need to connect the DC charger by running a cable (it is 18 feet long) to the battery in the engine area. How do I access/pass through the cable from the engine area to the rear of the cab?

 

You can run it thru the speedometer cable boot, into the driver's kickplate, through the driver side front and rear door threshold, to the rear of the cab.
I ran a 0ga amp line to under the passenger seat in my 2014.

 

Thanks for the reply - But -Holy moly! You had to take out all of that?! lol -- I'm barely able to hold a screwdriver much less pull all of the seats and front floor board out! lol...