Top Ten Classic Rock Songs that Would Sound Good as a Metal Song

This is the only song on the original remix I would agree with.
For this list we need songs with less Rock N Roll, blues and pop. And we need songs with more classical influences. I would try some songs by bands like Queen, Uriah Heep, Heart and Pink Floyd.

This song could never ever become a metal song as there's too much RNR. It's a big mistake to think that you can take any song and by playing it faster and louder you get metal. Songs with too much blues (Led Zeppelin), pop (The Beatles), RNR (Chuck Berry) can't be turned into metal easy because you have to remove many things and add many other things. The result would be a completely different song so you may not recognise the original.

Sounds good as a thrash metal song

A little bit heavier, and close enough to doom metal

Changing a little bit with the lyrics and the vocals, and this would be a fine death metal song

Sodom released a cover of it.

The lyrics and a speedy riff would easily change into a power metal song

Yes, there is a similar song (riffs) to this song. That has same picking/strumming style. But that song was played on low E. That was the benefit for it. It's "You've Got Another Thing Comin' " by Judas Priest.

I would easily imagine certain metal bands playing this song - versions with some more metal elements by bands like Avantasia, Savatage, Blind Guardian, Dream Theater.