Gents,

Took this saturday to focus on the only rust on my TX car - neglected battery tray. As I tore into it and removed some of the crumbly stuff low and behold there is also a big hole in the firewall near the passenger footwell. Doh. (see pics) Thanks PO!

No sense crying over spilt milk, time to fix it. Whats the best course of action? Here's my plan Ive gleaned from archives:

1.) Already wire brushed, cleaned with POR-15 marine clean, applied their pre-primer 'metal ready' to it.
2.) Will POR-15 the heck out of the area.
3.) Fashion sheet metal plates to fit well over the two major holes. Screw in.
4.) Bondo over the affected areas, hit with some primer and undercoat.

Does this sound about right? Need advice...don't want to regret how I did this later on. I'd like to take the time and do it right. Doesn't have to be pretty...just solid.

Thanks in advance,
dd

Attached Thumbnails

     

__________________
-------------------------------
'85 300D, 'Lance',250k, ... winter beater (100k on franken-Frybrid 3 Valve Kit)
'82 300D, 'Tex', 228k body / 170k engine ... summer car
'83 300TD Cali Wagon 210k, wife's car