i've made two short scripts to log dump1090-mutability data to a mysql database and/or sent daily excel email-reports. vou can filter by latitude, longitude, altitude, transponder-code or flight-number what data is written to database and/or triggers alert-email or alert pushover message ...
e.g. type in bash on your raspberry: socat -u TCP:YourBeagleIpAddress:portNumber TCP:YourRaspberryIpAddress:portNumber
edit: what kind of idiot software is this forum running on where you can't write : p without getting a stupid smilie
don't know if i really understood what result you want :)
but if i were you:
-> get the flightaware sd-card image (this is a all in one raspbian os + installed dump1090 + piaware which feeds flightaware)
-> additionally install the planefinder feed client
=> result 1: you feed planefinder +...