LateModel used to have the carpet for verts, which was virtually the same, only not as deep. If you are hell bent on using original carpet then you had better look like hitting the yards across the country. I tried to find the panels for theinside of the trunk once and gave up. Seems like they got thrown away by every notch owner on the planet.
The navigation on this site is terrible but they carry a ton of stuff. They have the trunk side panels. They also list a trunk mat for the cop cars. May give them a call and see if they have the carpet.