Images are very difficult to determine much from. Here's my two cents, for some reason I think the images may be bigger? I am only seeing approximately the top half of each rug.
rug 1 2512 x 48.jpg - Second best design and colors of the lot
rug 2 52 x 81.jpg - okay, not as nice as what I saw in the first. good colors, more unique design...
rug 3 52.5x76.5.jpg - 3rd best design and colors, but ends and corner appear chewed a bit. bad for value, but still worth a good buck.
rug 4 60 x 72.jpg - decent, may have some isolated areas of poor painting or fading. Upper right corner apears to have some conditional issues, perhaps color run, but def. some loss to the ends.
rug 5 25 x 46.jpg - best design and colors. bad loss to end, chewed up toward the center through the minor border, may be into the main border.
rug 6 30 x 46.jpg - okay, coarser than all the rest, some wear close to or touching the foundation.
rug 7 39 x 63.jpg - Tied for 3rd best design, also seems to be the most intact of the group with exception to 30x46 above (rug 6)
rug 8 8'10 x 11'6.jpg - heavy isolated fading, very, very bad for value.
Mosaic, 1920's would not be incorrect age for the majority of these rugs. Estimated value for replacement may be justified for being high ..... I really have to see more photos to say much about value, but I think 6k is steep from these images.
