Thank for the answer guys.
If i understand, the kick panel and the inner rocker goes between the pillar and the cab support. And the fact it is not 90 degree is not a problem, since i can use metal screw right ?
I took more photos here they are.
https://imgur.com/a/P3W6H ( Anyone know how to add pics, because they ask a url.. )
When i bought the truck it came with inner and outer rocker as you can see on that last picture. It was those one i wanted to use and just add a sheet metal to fill the gap between the rocker and the floor
It is hard for me to fit them, cause the other side is as bad as this one. So can't take measure.