This suggestion is mostly for the VarAC FM. This could be a Long-term feature as it will take time if developer decides to pursue. I suggest to check D-Rats (which is also a Ham Radio chat application). One of the features of D-Rats is the mapping of connected stations positions. Please see attachment. The capture only shows mine as I have done limited testing and no other station was actives.
For EMCOMM, GPS is key in many situations, particularly when mobile. Just might help in some situations.
You may want to look here in the Forum on Pinpoint v2. A bunch of us have played around with it with VarAC. You may want to try that first. Unfortunately I dont think anyone may still be using it, it was fun to play with but there was no real reason.
I will have to reject. Connection with niche software with small user based is not a priority. In addition - VarAC is not APRS. If people are after the coordinations game - there already great solutions for that. PINPOINT for example works great with VARA. 73s