An afterthought.....
If it's the shiny chrome looking strip that you need, then I was in a similar position earlier this year with the Elan. They are stainless steel and I have the originals but they looked a bit worn next to new paint.
In the end I bought a roll of that self adhesive flexible chrome strip and used that on the sills. Ok, get up close and you can see the cut ends but you do have to kneel down to see that detail and in normal use it looks fine. The big plus was no drilling the bodywork to fit and if you get tired of it you can always remove it with a hair dryer. This is what it looks like in practice, it's a reasonable alternative if you can't get original trim and the aftermarket options are poor quality.
