replacement body panel question

[mpierce9]

Hello. i've got some rust and would like to patch it before I do anything serious to the interior. I'm trying to figure out which panel(s) specifically will resolve my issue.

Below are images of the rust and the panels I have to choose from LMCTRUCK.COM. The gray paint you see is cold galvanizing paint.

Here are some pictures of the rust on the passenger side:


The PO had sprayed that expand foam into the kick panel on the passenger side. That can easily be seen in the top right corner of this image.







Here are my options from LMC. I realize that I will need to purchase
panel # 4 CAB FLOOR HALF-LH REPLACEMENT "A". I'm hoping you guys will tell me that all I need is:
# 4 CAB FLOOR HALF-LH REPLACEMENT "A"
# 9 INNER ROCKER PANEL EXTENDED LH
or instead of # 9 get # 10 INNER ROCKER PANEL LH
. I don't want to buy #7 or 8 due to the cost of those pieces.