Boy do I wish some one made repo door sill plates. My son said he paid 30$ for 2 for his Javelin.These are one real PIA to try to make to look decent. Start out by washing with lacquer thinner, then with a small brass wire wheel in my dremil clean out the ribs. Then with assorted small hammers and picks remove the dents and dings as best you can. Then wet sand to remove the scratches and corrosion pitting with 400# sand paper and then go to 600# sand paper. I got 20 hours into one sill so far and am only half way done with the 600# sanding. Next is sanding with 1000# and then crocus cloth. Finally polish with Autosol metal polish. There is 100% difference between the one that is almost half way done compared to the other one which was just washed with lacquer thinner. I hope the dazzle of the chrome like polished finish will hide some of the dings and dents that were not able to be removed perfectly. I spent around 5,000$ on this interior and would gladly have coughed up the money for repo or NOS sill plates. "Doc"