Originally posted by Swifster
Matt, there were thousands of Falcons sold in this country and many of them were in Arizona, New Mexico, Georgia, etc. You can buy used, rust free quarter panels cut the way you want them. I've had very good luck using Desert Valley Auto Parts in Arizona. They will cut the panel outside the factory seams and it will include the inner wheelhouse. This will allow you, or a qualified shop to cut tyhe quarter panel off at the seams to make this job easier.

Eastwood sells just about everything you'll need to drill out the factory spot welds so that you have a fresh seam to weld on. This is how we fix cars on the insurance end of things. If you can't buy new, buy used.

EDIT: DVAP does show a '68 Falcon 4-dr in their inventory.
They did show a '67 4dr in there invintory when I checked. from them it would cost $500 shipped ( emailed them ) , American classics has a listing for a '67 4dr driver side panal, $350+ shipping, I emailed Memory lane on it but they just emailed me there phone number, and I never got around to calling.