I'd like to contribute somehow as well, although probably with the later stages such after the initial prototypes have been built, as I don't have as much FPGA experience as others here.
You said you might need people for "general support" roles, I'd be willing to help however I can.
I spent a few school semesters doing VHDL on a Xilinx board, so I have general working knowledge of how everything operates, I'm decent with C/C++, networking, etc - so just let me know if and how I can help out. Maybe after you have a prototype designed and plans put out onto the internet I can download them and attempt assembling one and give you detailed feedback.
I hope this project gets going quickly and actually succeeds at making working prototypes, sounds very fun!