Buying 2 Fossils

[eeyore2bee]

So I am only 2 fossils away from having completed that part of the museum. This will be the first time in ANY AC game where I have done this. So I am hoping that someone has these fossils just laying around. I will pay you for the fossil. I just don't know what the buying price would be, so please post what fossil and how much.

I am looking for the diplo skull and velociraptor torso.

Thanks.