34 pickup firewall layout

[drfromnc]

I was wondering if someone would be so kind as to take a pic of their 34 pickup firewall (engine side), or mark up my pic, that has various stock items (wires, lines, brackets, hw, components) attached to it so I will know what goes or attaches where once I start putting things back together.

I know you will see the the big hole near the steering column that appears to be for a firewall mounted master cylinder. my truck has hydraulic brake upgrade and assume dad was or had mounted it there.

TYIA, Doug