In addition to the Nikon D810 DSLR Filmmaker's Kit, there is also a D810 animator's kit designed for stop motion applications - it's basically a D810 bundle with a 105mm f/2.8 Micro lens, external power supply and Dragonframe software:
The animator's kit contains what you need to get started in the incredibly fun and exciting medium of stop motion animation. A full-frame Nikon DSLR with the latest image features combined with the AF-S VR Micro-NIKKOR 105mm f/2.8G IF-ED is the first step of the process. Together with the stop motion animation software Dragonframe™, used on many Hollywood blockbusters, you'll be up and running in no time. To ensure the motion doesn't stop, included in the kit is an EH-5b/EP-5b Power Supply and Connector for continuous power to the camera.
For now the D810 animator's kit is available only on Nikon USA website for $3,999.95 (savings of $750 off suggested retail prices when purchased separately).
Here is the Nikon D810 animator's kit unboxing video posted by Nikon USA: