Roy,
Like you, I spotted this one earlier. I agree with LE and had concluded that the rifle started out as a genuine Savage 4T (less telescope). A few signs for me from the little detail in the photos is that the front pad looks good & original (apart from the stake marks) and the stock cheek piece appears undisturbed and matches other Savage originals. However somebody has added that scope/mount and probably the "expected" 4T markings at some later stage. They may well have been responsible for that odd mix of finishes (rust excepted!) to that scope and mount as well.
If it goes for somewhere in that price range, which is ordinary No.4 money, one could sell the scope and end up with a genuine 4T (less telescope) and mount for free or even a few quid in profit!