Great writeup, and I understand the concerns about FT8, but I'll reinforce what Mike says a bit with an exchange I had with another rover when I was in lonely DM83. The attempt ultimately failed because he apparently couldn't hear me on 2, much to my disappointment. Clumsy, inefficient, yes. But possible, and still fun.
John, AA5PR
190608_232215 50.313 Rx FT8 10 0.1 1229 AA5PR/R K5ND/R RRR
190608_232230 50.313 Tx FT8 0 0.0 666 K5ND/R AA5PR/R 73
190608_232245 50.313 Rx FT8 9 0.1 1228 AA5PR/R K5ND/R 73
190608_232300 50.313 Tx FT8 0 0.0 666 CQ TEST AA5PR/R DM83
190608_232315 50.313 Rx FT8 5 0.1 1225 AA5PR/R TRY 2
190608_232330 50.313 Tx FT8 0 0.0 666 CQ TEST AA5PR/R DM83
190608_232400 50.313 Tx FT8 0 0.0 666 K5ND OK
190608_232545 144.174 Rx FT8 -2 0.1 1215 CQ TEST K5ND/R DM94
190608_232600 144.174 Tx FT8 0 0.0 1500 K5ND/R AA5PR/R DM83