Well, I want a complete set of the hatchlings for myself too, and I only had spares of the Razormaw. So I sent you one and have been listing the other at the AH. But the Whelpling is worth so much (around 8000g) that I am selling my only one of those.
But last night I went back out to the three spawning sites for the hatchlings nests and found a hatchling at all three.
So now I have my complete set of those three (there are still more in areas too high for me, atm), and any more I find I will send you one too.
By the way, I found a great spot to farm cloth and leather at the same time. In about one hour I got over 350 light/medium leather, 70 linen and 90 wool - plus a few silk, hides, and green drops. I'll send the details in another PM later.