You must finish in the top 20 scores for your class to qualify for worlds at any qualifier you attend. Keep in mind that tie scores only count as one score. The other option you have is to contact your local archery club and persuade them to host a local qualifying tournament. The folks in the IBO office can help you with the arrangements. This would save you the additional travel cost, and help some of your friends and local folk also qualify in your own back yard. Just a thought, hope it helps.