You could also base a mod off the more space based Macross line of animes, rather than their robotech counterpart.
SDF Macross
Macross Plus
Macross 7
Macross 0
and the recent
Macross Frontier
In robotech timelines - the SDF-1 is surpassed by later ship classes with SDF labled ships being flag ships for the most part.
In the Macross timeline - The Macross, is followed by the Megaroad class (SDF-2 in robotech) and then by the New Macross Class, and also by compact advanced ships like the "Macross Quarter", the Title of Macross being almost an honor noting that the ship likely carries a Super Dimentional cannon of some grade.
Sins race counter parts - WARNING SPOILERS FOR PEOPLE WHO HAVE NOT SEEN MACROSS 7 or MACROSS FRONTIER!
Robotech
TEC = RDF - simple one here, the RDF uses more fighter classes but also is rather new to the whole spare warefare thing resulting in ships that while they use advanced weapons taken from the SDF-1 blue prints they are still betting more on heavy armor to keep them alive in battle.
Advent = Robotech Masters - while not so vengance focused as the Advent the RMs are a race on the edge, without the protoculture martrix from the remains of the SDF-1 they will be toast as their vaulted sciences beak down, they like the advent are rather close to baseline human, beyond their penchant for cloneing that has left their race rather short on new ideas for the better part of the last 100 or so years. They also created the Zentradi race with their clone bio mastery.
Varasi = Invid - Inhuman races match up in some ways, the biggest change is the invid rely on swarms of sometimes kamikaze fighters, they are the source of protoculture, and wish to find a new source of it's source the flower of life. Likely their stongest ships would be large hive ships, and beyond thous and the iconic shell door carriers they use, they would need some fleshing out ship wise. (maybe differing classes of shell door with diffrent classes of fighter, LRM - kamikaze carrier)
Now for Macross races
TEC = UN SPACY - again simple, The people of Earth having uncovered the Overtechnology of the Protoculture* have joined with the remains of the Zentradi to explore space, supported by the New Macross class, and in some part wondering what happened to the Megaroad.
Advent = Protodevin - This is a race once sealed by the Protoculture*, almost godlike in nature, they can take to space without the aid of science, but to support their rather small number they have used their abilties to take over the minds of human soliders, forcing them to fight to collect the Spirta that they need to rose their fellow sleeping Protodevin.
Varasi = Vajra - they even have simular names, the Vajra are the Super Dimentional Lifeform, they exist as a single hivemind network, they strike at other races for the reason that other races intrude on their peace, so off to war they go. Vajra come in 4 types, small types (fighters) Large types (able to take down crusiers), Bishop and Rook Class heavies, as well as each swarm having a single Queen class. It is said that the Protoculture* itself admined the Vajra in the process of creating their Super Dimentional sciences.
A note on terms, in Robotech the protoculture is an energy source created by the Robotech Master known as Zor, in Macross proper the Protoculture where just that, a legendary no gone race of humans from whom both humans and zentradi where born, Overtechnology being to Macross what Robotechnology was to the Robotech. And Reflex weapons in macross where some sort of super weapon beyond all science when in macross that was just the in universe name for nukes.
-Gabe, UM-D Anime Club president and mecha nut
