Looking back at my Diamond Select Rowlf vs. Hot Toys, let me retract my statement. While the head is something you can imagine being controlled by a 1/6 scale human, it's way too small. Palisades is closer.
In fact, I don't think the prop replicas cost that much when they were released, which is insane to think about.
Mr. Hooper
Gordon & Susan
Luis & Maria
Bob & that deaf sign languaging chick.
David & that other lady (maybe Native American? Buffy?
Kidding! Though I would consider the two lead puppeteers Henson & Oz
If they came with a couple of in scale characters to swap out on their hands. (maybe with separate attachable legs, so you could alternately pose the muppets standing next to the "humans")