The OP already has an AIS transponder, so the Vesper would be throwing one out and buying
While I very much like our Vesper, it is a limited NMEA
wifi multiplexer because there are a significant number of common N2K PGN's it will not recognize or translate. Rudder
angle, for example, but there are many more.
I held hopes that expanding the translation scope
would be a high priority for Vesper, but it appears it is not. They have added no new functionality in this area for at least a year.