I'm no Fettologist, but the scene where young Boba picks up the helmet of his fallen father hints at young Boba taking his dad's armor. Obviously between Ep. II and Ep. IV the armor has undergone an evolution. Perhaps certain parts were damaged beyond repair, and others outright replaced. Perhaps some were upgraded.
Your emblems would, IMHO, fall into a theoretical category of what that evolution might have been - or at least one stage of that evolution.
If young Boba's adventures are ever chronicled in the comics, it would be interesting to then pattern the armor colors and parts after that. At least it would be canonical at that point.