Is this a secret project?I am sure the hardware you are looking for is already built.
Just focusing on help from specific people you may be losing the experience and knowledge of other members of the forum that are willing to reply to questions, but don't have the time to enter such project.
How do i benefit from being involved?
You might have better luck getting a collaborator if you offered some kind of trade for their time. For example, you will probably need a Uno or a custom Arduino for your project so, a good offer might be...For x amount of development the collaborator gets x amount of hardware. It is good that you have a "dangling carrot" to reach for but, if the carrot is not reached the collaborator will lose benefit. Please don't think I am trying to shoot your idea down, it just takes a lot of work to develop a project. I hope you have success, good luck.
this should perhaps have been posted under Gigs and Collaborations instead. Sorry for that.
Tell us more about what you mean by long distance RF detection?