Damn 3-2 is annoying. There is no shortcut to get to the CG. Im thinking about letting it for the nextplaythorugh.
Also, getting the chunk of cloudstones are being a pain in the ass. The pure bladestones was nothing compared to this. I have 99 shards like you said, lestat, but they still only drop shards.
And I still need 4 chunks (well, 2. there is a dead body in 4-3 that gave me 2 chunks. maybe I will get them too next playthrough)