Its no doubt practical and effective.
After that,it boils down to aesthetics and preferences.
I believe our guns are one place we get to exercise our preferences, JUST BECAUSE!! No justification required.
You do it,your way.
I was given a beat up Rem model 81,in 300 Savage. Forend was broke,held on by a 1/4 20 round head screw. Front sight,bead broke off. Barrel shroud looked like it rode in the back of a 1950 Ford Pickup under some tire chains and a jack.
Rear sight,gone. A misaligned drill and tap for a receiver sight was done to the left side of the receiver. The safetylever was bent away from the receiver.
I gave it some love. Found a used barrel shroud,forend,safety,etc.Its not too bad,right now.
Original sights are all collectors items. Tang peeps $250-300. Original opens $50 plus.
Aesthetics? Some might say it would be a crime,just out of place....
But I have imagined using the factory drilled rear sight screws to attach a Red Dot. It would be a practical,effective choice,cheaper than collectable original sights. No gun modification. No harm done.
It would make a fine woods or hog setup.
But is it right for a Rem 81 as a classic? I'm conflicted there. My brain says its a good idea
But my "feelings" side says set it up with period appropriate sights. Even if it costs as much as the gun is worth.
I'll probably go with what makes a Rem 81 a Rem 81. But a red dot probably would make it a better hunting rifle.