I did one on a friend's bike recently with solid rivet pins. I used a lump happer held behind the split link as an anvil and a small ball peen hammer to mushroom the rivet ends. As Luddite says, the end plate was a very tight fit so not going anywhere easily.
If you go for a split link with a clip as Rob suggests, don't forget to fit the clip with closed end facing direction of chain travel (Just saying -- just in case).
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