Answering my own question from the manual - suck it and see - looks like I may not need a gpu for a Kinect 2, which means a cheaper NUC with an intel or Renesas blue USB3 port _might_ work.... :
"
• Kinect for Xbox One / Kinect for Windows v2 (with USB3/power adapter)
o Using the official Microsoft Kinect v2 drivers
o Due to driver/SDK restrictions only a single sensor per machine is supported
o Multiple networked machines each with 1 sensor are supported
o Only USB3 ports (blue) with Intel or Renesas chipsets are supported by the drivers
"
"It is hard to state minimum required system specifications as this is highly dependent on sensor types and the
number of sensors used.
• 64-bit Windows 10 (for older sensors Windows 8/8.1 may work but this is untested)
• 8 GB or more RAM
• Modern Intel i5 or faster CPU (or AMD equivalent)
o dual core 2.4GHz or i3 may be enough for older sensor types with single sensor setups
o more cores help for multi sensors setups as the app is multi-threaded
o 3 Ghz or faster will help for newer sensors and multi sensor setups
• CPU with AVX2 instruction support is required for Deep Tracker functionality"
Guess I'll have to just try and hope......I have an old core i3 laptop with 2* blue USB ports, thats basically what you get in a cheap NUC anyway.
Cheers
Jon