So how are supplies of Beryllium in the area?
According to a quick search on inara, average. At best. There is one station within 25 ly that has a supply at 400k(409 to be specific), the next closest two are 216 and 186k… after that you’re already down to two stations with 60k supply, counting only large pads at least. Mediums are bound to last a bit longer.
I am always up for a trade CG... esp if there are skins or engineered gear up for grabs.
We’ve seen that thousands of times already(may be exaggerated figure, not bothered to check), just “Haul to fix station” would actually be boring. Nothing exciting from a story standpoint because you know nothing will ever happen to the system again when it concludes. But it is still worth saying that me being as far from a hauler as it gets (most of my trade rank is mining or RP-based support of trade CGs/running BGS delivery missions in the absence of other good alternatives) also likely colors my views just slightly.
… though unless the repair initiative is also hosted from Cornwallis or something, or it automatically provides a permit to contributors too upon completion (without needing to claim the CG), claiming the rewards from it would be interesting if you’re not Elite.