Ok so huge improvement on the raid, I did one quick raid with Tim.
Noticed a few problems, When killing Tekton he didn't seem to go back to the anvil, Also after killing him I couldn't pick up the supplies he dropped.
As far as the chest goes, you didn't need to build it with planks, it should be 4 planks for small chest, 8 for medium & 12 for large chest. We wasn't able to access the private storage to store our own gear and we also couldn't put any items into the shared storage.
Huge improvement on the rest of the raid.