Hi Stanley this is a nice looking project.
I'm just getting started with something similar and am wondering if you have any updates on this project. I looked at your blog page and noticed you are using a Baofeng UV-5R looks like for your radio. Have you considered using a smaller transceiver? The one I just ordered is a DORJI DRA818V. It's still somewhere in the mail so I haven't gotten to play around with it yet.
I've also set up an APRS station at home using a mobile radio and a Kantronics KPC-3 Plus connected to my laptop, so I will be able to receive my packets from the module and should be able to see movement plotted on APRS.FI
Assuming I'll be tracking this way and using my callsign I shouldn't need the LCD / OLED display right?
I notice this thread is over 120 days old so anybody that has some input on the above please feel free to jump in there.