So I did a lot of looking and looking and figuring on where I was going to mount everything I need to in my electrical compartment. I decided on making a panel that would mount against the firewall and would be used to mount the contactors, current limiters, and shunts upon for the electrical system.
I made a pattern once again with the poster board and then using some .062 aluminum sheet I used the pattern to cut out the panel. Now I have to make some bends in the panel for being able to mount nutplates on the panel.