You asked about a member on Car domains .   I posted a link from Marc's signature . I post it again

  I would think he the Guru of 1969's 

https://www.flickr.com/photos/7822276@N03/sets/72157602720267645/page5

427carl wrote:

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Marks 69 4 door hard top (Russian Embassy) Pontiac is probably the best in Canada .  

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That's a '67 

Dave, a few thoughts for you
:
1. You have your Laurentian to use as a guide. At least the front clip, and rear portions would be the same. You can see what's missing, etc.

2. When I bought the 69 2+2 hdtp a few years ago for the chassis that's under my 70 Parisienne, I disassembled the entire car. While I threw out all the sheet metal, I kept ALL of the fasteners. I used a few when reassembling the 70, the remaining are in a couple jars in my garage, you're welcome to them. While they're not labeled, you can use your Laurentian as a guide.

3. I know of a 69 Parisienne convertible in a private junk yard about an hour NE of Calgary. It'd be difficult to get out of there, but it's an option. I've taken a few pieces off it over the years, but the bones of the car are all there.