You can read more in my previous post. https://steemit.com/cryptocurrency/@jaka87/lisk-which-delegate-to-vote-for . Basicly you can vote for 33 delegates per each vote, so you have to vote 3 times. The cost is then 3 Lisk and 0,18 to register for lisk elite. Keep in mind if you don't have a lot of Lisk it might take you months to cover your expenses...You can try calculating http://tools.mylisk.com/calculator.php