with cars its not all about a possible return with a sale.
your starting out with les visible rust than mine, so thats a good start.
the footwell rust doesnt seem too bad, but you will need to dig the sound deadner
away to see better.
if only a few panels have bad paint you can touch them up.
all up, depends how fussy you are about its appearance.

Too much to read!

But with all that information I couldn't see a price for some reason you are evasive about it apart from justifying the value in relation to its engine.
Just like rust you don't really know about the engine until its too late . As a rule unless you have much better evidence then assume the engine is not right and there is more rust than you can see, that will be usual.
As for the paint assume its faded in the last 6 years especially if its been sitting where it seems and that matching paint will be a problem and it will need a respray.
If its a few hundred go for it what have you got to lose?
If its thousands how much do you want it? like Torana said.

You seem quite methodical quy why not questimate how much you need to spend to get it how you want it and see what you can buy with that money?

As you haven't restored a car you might be better off with a driver that you can improve over time?
Golden rule with rests they will cost you 3 to 5 times what you think in time and money if you finish it. this car is evidence of that.

Of all type 3s early fasts are the nicest if you can get a transition year early body / late running gear buy it.
Mitchell

Dang, accidentally deleted the post.

Not to worry. The car was just under $2k but I have since had issues about storing it so it will have to wait for another time I think.

I appreciate your advice guys, I'll keep it all in mind for the next time I'm ready to go.