I've only played persistant frontier so i'm gonna compare some stuff to that mod.
I'm gonna gues by the pictures that the map will probably be tatooine so a few questions and maybe suggestions.
Are you gonna focus mainly on a rebels(new republic) vs empire(remnant) or will there be more factions like hutt cartel, black sun, czerka corp, etc.(supported by dark jedi) since the empire's interest in tatooine wasnt that great.
Guess native faction will be jawa's and tuskens.
suggestions: -system:maybe make the outlaws faction smugglers/pirates and have "spice" in their ship(only enterable by outlaws faction). If they can manage to bring this spice to one of the other factions cantina they can sell it and make money.
-crafting:dont know what your gonna use as replacement for wood/ores. My suggestion for wood would be scavenging piles/broken droids(since it's part of the local jawa culture and all). They would give parts(branches) and metal chuncks(wood blocks). For ores altough it's not really lore on that planet would suggest power crystal fragments(small iron ores), power crystals(iron ores) harvested at power crystal structures in mines or on the surface.