I’d be happy to help. I’ve been thinking about this for a long time too. I think we could install it on the VHS roof in a weatherproof box and run a Cat5e cable down. Maybe use PoE.
What hardware are you thinking? Based on my research it seems the really cheap ones essentially just use a transceiver designed for a client node. This is only single channel and I don’t think it’s very worthwhile. Whereas the raspberry pi kit from Seeed is a nice entry-level “real gateway”.