If you want to build a campaign then you must have a funds for the salary of the willing participants. But you need to find a escrow that hold the funds instead you own that responsibility. also to gain some willing user to participate on your campaign. .and also the must important is the site you want to promote or "ICO". Cause that is the must important . .we all know that the purpose of camapign it to promote the ico .you must create a sig and avatar also to be wearing of all the participants during the campaign also sig and avatar is related on the ICO..