Lion Breeding and Rehabilitation Volunteer in Zimbabwe

I'm a 16 year old teen that lives in Peru and wants to volunteer to the following program. I want to be part of a volunteer program at Antelope Park in Zimbabwe that will help in breeding and in the rehabilitation of lions. Lions are having a rough time, their population is decreasing each year, in 1975 there were 200,000 living lions but a survey in 2002 showed there were 23,000-39,000 lions. That's a lot less isn't it? Help me go to Zimbabwe to help this amazing creatures. As you may know volunteer is not cheap and living far from my destiny makes airfare expensive, my goal is to reach to $5000 so I can be able to pay my two weeks of volunteer($2573) and flights(approx. $2800). I hope you can help me reach my goal.

“Let us remember that animals are not mere resources for human consumption. They are splendid beings in their own right, who have evolved alongside us as co-inheritors of all the beauty and abundance of life on this planet” ― Marc Bekoff