Fencing Job - Clanwilliam, WC, 8135

I need to fence off my yard in Clanwilliam Western Cape. The fence of choise is a 1.8m high pre cast concrete wall with a 4.0m sliding gate without a electric motor. The length of the wall is 20.15m x 24,15m x 11.92m x 24.63m. The 24.63m includes the 4.0m sliding gate,
Thank you
Chris.