M725 firewall rust, options needed

[m725ambulance]

Hello I have observed the forums here many times but this is my first post. I have a m725 that is in fair condition, i just recently dropped a small block mopar and transmission in. My question is that i do have a considerable amount of rust on the firewall where the fender bolts on right near where the door is , it seems like it would be difficult to patch in this area. Does anybody sell firewall patch panels or would a firewall from something like a j-10 work? Thanks for your help.

 

[gimpyrobb]

J10 20 or 30 should work fine. I ended up forming a piece of sheet for mine. It is a know issue with these trucks.

 

[m725ambulance]

Thank you!