Quota for wikidata-query wmcs project is currently 50GB ram / 17 cores. It currently has a commons query service instance running with 4 cores and 24GB of ram. The next instance size is 36GB ram and 8 cores, we are 2 GB shy of enough quota to boot that (after shutting down the existing sdcquery instance). The instance with more memory has less disk though, will have to see if 80G of disk is sufficient. We may be able to request custom sizing, but I'm not sure of any particular precedent. A quota increase can be requested if needed.