Hi Pattymac. To remove chrome strip in side door opening you need to remove two screws at front end of rubber seal then carefully pull rubber seal out of chrome mould then unscrew chrome strip/mould carefully twist bottom of strip, along gutter, outwards and it will release from gutter. Do not force gutter mould else will bend very easy.
I did my sill on passenger side a couple of years ago but didn't take pictures. If you look in ebay sometimes bluewiremotorsport advertise them, or take a pattern of front and rear of sill to sheetmetal shop. Most shops can fold or roll some for you. I would recommend getting two because if one side is gone the other won't be far off either.
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