Sunshine, those are attractive prices. For comparison, the site I was looking at lists the following:

Springbok $400.00
Black Springbok $500.oo
Blesbok $450.00
Blue Wildebeest $995.00
Black Wildebeest $1100.00
Oryx $1050.00
Kudu $1325.00
Steenbok $325.00
Duiker common $320.00
Impala $350.00