I have a modification to MOND that appears to work much better than 'Standard' MOND at the galactic scale. I want to test this model now on larger structures. Does anyone know where I can find kinematic data on galaxy clusters, preferably some 'gold' standard that people have been examining for years. I know that the Missing Mass is a classic problem and that Galaxy Clusters are a problem for MOND as well as λCDM. I need basically the mass of the total cluster, the radius of each galaxy, and the rotational velocity of the galaxy.