You can book a plains game hunt in Namibia for about the same price as booking a shooting trip to the high fenced farms of South Africa. Some of the fenced farms of SA are very large, some are not. The SA farms will probably have a greater variety of game, as they import game to their farms from different countries in Africa. Namibia will offer most of the same game, but it will be native to the area unless you find a fenced farm similar to SA. Either trip offers high success rates and will fill your trophy wall for about the same price as a guided elk hunt.
The airplane trip is a pain but it is well worth it.