If there is any trace of steel that has peened up high at the edge of the lug,I would carefully dress that down to the original surface.
If that edge is dead sharp,,I might just break the edge with a three thousandths or so corner break.
I'm not the expert here,but I would not put a larger (such as a ten thousandths) corner break on it,but that is just my opinion.
Its great that you may have a new link.
Before you install it,I suggest you get the best center to center distance you can on the holes.
If you have calipers,usethe outside jaws to get a measurement of the web between the two holes,then use the inside jaws to measure the widest span of the holes.Average the two numbers,and you will have a measurement to write down.That may come in handy later.