409 side trim or moulding

[302rover]

Thanks Giles,

I checked Bresco 17750P and, indeed, they do look like the proper clips. Looks like the common garden variety pop rivet is used to fix them to the sheet metal.
I'll order a packet.

For installation it looks like the moulding is first 'hooked' under two clip tangs, then rolled and pressed onto the other two tangs. Is that correct?

Thanks again for your help.

Tom