Doright wrote:Unfortunately Older Mustangs have a reputation for severe Rust problems.
BUT They do have a good following in the aftermarket world so parts availability is good.
Outer sheet metal such as quarters Fenders and Hoods leaves a little to be desired but I have heard good things about floor sections and the Rockers so no fear. Also Interior pieces are readily available as well.

You really need to ask your self How far you wanna go with it how correct you wanna be.
cant say I agree with putting good metal over bad as it will rest out faster just like Mike said if this is true I would cut out both and start over BUT I am not you, You need to answer how long you want this to last. Just because Paint and engine aren't original doesn't mean its ok to go about body repairs in a half $#% approach if you expect it to last a few years.

In the pictures you showed It looks like your Grand father did nice work, He may not have been using original type replacement parts he may have made his own patch panels but you cant really tell he welded directly over the old metal its the way you said it which left us with the question of it.
Are you sure you know what you are looking at? In this case If you crawled under the car if what you say is true you'd likely see rusted out panels with rust holes though them with good metal over the top from inside the car?????????

Pictures are worth a thousand words any way you can get under their????

'68 Coronet R/T wrote:Convertibles are a whole different animal than coupes. There is much more structural reinforcement necessary to hold the car in shape. You will need to approach this in a deliberate and well planned manner so figure out now what you want to see when finished.

It took me over 10 years to finish my Coronet R/T. I had to work on other peoples stuff to earn enough money to buy the parts I needed for my car. If you put together a good plan of what needs to be done and when, you can get it accomplished. Some guys run out and buy the things they don't need yet (like Paint and Upholstery) and then it sits while they struggle to buy body panels and suspension parts.