Alien wood fabricator: The ancients were the most skilled at turning one form of organic matter into another with the help of other catalysts. In this case, ether causes ant paste to become fibrous like wood. Using this, we can create synthetic wood very quickly with a lot of ant paste and a small inflow of ether.
Alien Charcoal extruder: This structure takes tons of ant paste and a steady inflow of obsidian and turns them into massive amounts of charcoal.
Alien lumber monolith: this building consumes a little ether constantly in order to soften wood and compress it into a giant upward standing beam of wood. The more wood is stored, the taller the building becomes. Should only need one inkscape image per growth stage, and maybe have like 10 stages of growth until the tower is full. Would give a cool effect. Should also be the highest level storage from wood.
Transcendent Diamond compression matrix: This will be a unique structure and should serve three purposes. 1.) The matrix would be the highest level charcoal and diamond storage. 2.) Each matrix likes to stay full on charcoal, so it will rapidly break diamonds stored inside it down into charcoal until it's full on charcoal. 3.) If charcoal is maxing out, then the matrices will begin turning charcoal into diamonds to make room for more charcoal. In a single map colony, they would do this automatically, but unfortunately, on a regions map you would have to go to the map with the matrices in order for them to start decompressing or compressing. I would put these in an area that you normally visit, like your capital city where you go to gift and trade.
So in simple words, it acts like a more advanced diamond generator when charcoal production is high, and it acts as an emergency charcoal generator in case charcoal production plummets, and of course it acts as the largest storage for diamonds and charcoal. Remember, if charcoal plummets, you'll get no oil, which eventually means no plastic, sugar, or toys, and without sugar, food processors stop working.
Trascendent crystalline compression matrix: same concept as the diamond version, only this time it tries to stay full on sugar and then compresses or decompresses based on how sugar production is doing. It would also act as an end game generator for crystalline, which humans don't seem to have, at least as far as i've seen.