Mbalabala are very experienced lowveldt Leopard people.
My Choice of their Leopard PHs would be Charlie, Lindon and Bill.
For Buffalo, Leopard and Ele, Matt with his 470NE.
The areas South East of Bulawayo where they hunt is great Leopard country where the Cattle killing Cats grow big with the high quality feed.
Most of the Leopard are taken with a spot light but if you can put some big time into it you might be lucky to score without the use of the spotlight.
I would recommend a minimum of 14 days but more would help to get that big one.