The clan leader and all peoples with "rights" clan select a home planet and move IPs at unclaimed Planets everytime to there.
500 IPs is OK, but we should give each player 10 free IPs/turn at his/her favored planet.
Then each player would have a chance for a planet.
( 10* maxClanSize - IPsDistributed ) /2 should be distributed at equal quantities to all members of a clan