Technical Question about pontiac shark fin mouldings

I'm thinking about Pontiac shark fin trim for my 50 chevy coupe. I was wondering how the trim connects to the rear window beltline trim? I also wanted to know if anyone has adapted the 4 door trim to a 2 door or coupe? I've never been up close and personal with this stuff so any advice is appreciated.

 

The original belt molding gets trimmed and the shark fin overlaps I'll send so pics when I get back to the shop I just aquired a set and will be installing them on my 53 Chev hardtop very soon

 

That would be helpful. Thanks!

 

Hope these help let me know if you need more

 

Wouldn't the entire Pontiac belt trim just bolt on using the factory clips? The body is stamped the same under it.

 

That's a huge help

 

What I was thinking was using a set of 4 door trim pieces on my coupe and wanted to figure out how the shark fins would integrate with the rest of the trim.