I'd be willing to build your sofware. It probably wouldn't be that pretty; I'm not much for web design, though I have some experience developing UIs, and even if I were, the tools at my disposal don't really allow for me to run, let alone build, a glamourous front-end. But I have some experience working with UNIX-esque operating systems and basic network administration -- certainly enough to route all traffic to the local web resource provided via DNS, given a decently well-supported networking platform -- and some experience working with HTTP, and with node. I can write a basic backend for your captive web application if required for storing the data, and I can implement a mechanism allowing you to view administrative resources such as basic statistics, likely incorporating basic HTTP authentication.
In essence, if what you're asking me to do is some basic networking and a honeypot using nodejs and native functionality in Linux, I can navigate this technology and have enough experience to get at least the data processing components done easily, though a decent GUI will be a challenge (may incorporate external libraries). I wasn't expecting systems config outside networking, but give me the opportunity and, for enough cash, I'll do that too.