Hi, A friend gave me a rifle that had been in his family for a few years, his wife wanted 'no guns.'

It looks like someone bent the lever.. are replacements out there? There are lots of scew holes and stuff..looks like various sights could have been attached. Any clue on how to find out how to find out what the original options with this would be great. I found the stamp 414 under the stock..

Top's a pic of a 414, the tang sight is added.
Lower pic is "standard" 44.
Someone may have customized this into his target gun, that forearm might be nice from the bench.
I'd fill the holes with plug/set screws, attach an externally adjustable scope and have fun.

Even the bog-standard 414 was intended for target shooting.  It wasn't a hunting gun.  Don't expect it to be one.

I wouldn't change a thing on that old Stevens! The changes do hurt collector value, but trying to make it original again will hurt it's value, and your pocket book too! It's typical of old target rifles used and modified by their owners, and it's history as such is also important.
I doubt a stock lever would fit it anyway, as it appears the lower tang might be custom bent for the stocks, and lever. So you might end up with a lever that wont do you any good without a new lower tang and stock also.
This gun deserves to be left alone, and enjoyed as it is now. It's a piece of shooting history, and has survived in it's present state for a long time.