Yes, there was a review on here a couple days ago about Gairlochian's Number 4 mount. Thirty-five bucks (what he's asking) is a third of the price of an American one, if your local shop can get one for you.
You put on the mount and you put your original sights away VERY carefully, then add whatever scope you want..... if you want one. Otherwise, just leave her the way she is.
My grandfather immigrated to this country before the Great War, worked as a fur-grader and trader the the HBC post at Fort Edmonton. I do know (he told me) that he had a .22, a shotgun and a centre-fire rifle. After he got married, my grandmother didn't want them in the house because they weren't needed.... so he sold them. Right now, it is almost exactly 100 years later and I would give just ANYTHING to have one of my grandfather's guns.
Hang onto this one, pass it on to your son or to your grandson. He will be thrilled.
In the meantime, have fun!