I bought a 67 Galaxie 500 with the original tranny, but the motor has been changed. Its a 460 out of a 1970 lincoln mark III. The only thing im having issues with is there is a piece that was cut out of the firewall directly behind the pedals. I have a couple options im thinking about. 1st, I'm thinking about just placing a sheet metal and welding it in drilling holes for anything that is runs through the firewall. If i do that i need to find some type of manual to see what the original firewall looked like. 2nd, a false firewall. And finally 3rd, replacing the whole firewall. I have been looking through the internet trying to find a company that makes firewalls or trying to find shop manuals to see how everything looked. I'm not going for a full restoration. It's going to be a resto-mod, but i still want need these manuals for help and other tips to get this beauty running. Im trying to do this on a budget, if that helps any. I will be posting pictures soon. Thank you for your help. Also if you could post links that would be great.