I think I need new window channel bedding... is that the right part?

This is my 1968 130 (two-door) with an B18B/M41J, etc. In my continuing quest to make my daily driver a nice quiet ride, I've replaced my rotten front vent window seals and installed some very nice 3M "omega" profile rubber in place of the old windlace (it looks and works quite well). I've also got 1/2" wool/felt carpet pad and a sheet of indoor/outdoor carpet in place of the shredded original floor mat.
This has all helped, but each problem I eliminate just brings another one to the top of the pile.

I'm now being driven just a little crazy by the whistle-suck noises around the windows and the rattle of the windows.

I noticed that the windows channels were extremely worn/non-existent In the front, this is a simple U-channel. But the back and top channel parts are the felt/tar chrome "comb" bit.

I think the window bedding (320551) part over at Swedish Treasures is correct for the front edge, but I can't seem find the chrome/comb parts.

Can anyone tell me what bits I need for this repair?

Also, did anyone have any luck with a different/universal/aftermarket window channel? If so, what and where can I get it?