BSR BT-4 rear damper stay / shock tower / thing

So due to my lack of driving skills combined with the lack of flying ability of my BSR BT-4 touring car, I landed on it's roof once too often and the rear damper stay broke. And that's a bad thing because HK does not seem to restock on spares. I could have bought an original TeamC part, but that is way too expensive 'cause it's carbon and it has to travel half way around the world to get to my door step.

Since the printed part is more flexible than the original, I added the strengthening rib.