Just a thought, but has anyone tried one of these:
http://www.fit-pc.com/web/products/accessories/fit-headless/
http://www.amazon.com/CompuLab-fit-Headless-computer-display-emulator/dp/B00FLZXGJ6/
http://blog.macminicolo.net/post/72706369716/an-hdmi-adapter-for-a-headless-mac-mini
I haven't tried one but looks good. Only $15 USD. I know on some NUC models there may be need for an adapter since the newer units do not have full size HDMI ports, but it looks like a start.