Just for the record, there is rarely such a thing as a "no rust all original sheetmetal car" unless it has never seen the light of day, in particular the cowl of a 65-68 Mustang. Even if your cars body and undercarriage has been very well cared for, rust free and never ever driven in the rust belt of america, if it has been out in the rain even only once 40 years ago when delivered from the dealer to the garage it likely has some form of cowl rot even if it is just the surface. I am not doubting you in any way shape or form mind you so please dont take offense but Ford never expected these cars to be around for more than 10 years and as such they never ever put any kind of paint or protection on the cowls in the first 4 years of production, it is totally bare metal and often the drain holes were plugged with body seam filler. The slightest bit of moisture in the air could make them rot over time much less a an 1/8 of inch of water that sat in there even just once in 40 years until it evaporated. Check around and poor some water in it to be sure as many of the cars sold have not had this done, it is costly and expensive to fit so almost all of them need it.
