8th Civic rear sunroof part # help

Hello, I need help identifying a sunroof part #.

I have a 2007 Civic EX coupe. I'm the original owner and it it still runs great. I just need to fix this water leak.

I have water coming into both sides of the rear interior at the C pillar after rain, and immediately after pouring water into the sunroof channels.

I took out the headliner and found that the white plastic pieces in the back of the sunroof tray that funnel the water into the rear sunroof drains were both cracked and extremely brittle. One had a large hole and the other was completely separated.

Attached are pictures with red arrows showing the piece I want to replace.

I also attached a parts list sheet. I don't see this piece identified. I think this might just be considered part of the sunroof frame.

Your assistance is greatly appreciated. Also, has anyone replaced these and have any advice regarding the install?

Thanks.