US West Coast (Zone 13) to Africa (Zone 10) is 130K each way in F, so 110,500 miles after discount, not 91,375. But otherwise should be correct, and the the 1-2-1 business class configuration is very nice.

I'd caution you on the "plenty of time" thought, as the Suites LAX - SIN is a tough get. I assume you are only looking for one seat, but, for example, there isn't any availability now for fall, 2015. Good availability for June, 2016, so ideally if you want to fly fall, 2016, you want to book your seats in 3-4 months time (and need to have the miles available in your account).

Friendly