Here are the details of how I was able to get to KL during daylight hours and see the jungle:
M81 - Wakaf Bahru to Gua Musang 4:02 - 8:50
E27 - Gua Musang to Gemas 9:30 - 15:57 (same train as above, just the number changes)
SM12 - Gemas to Kuala Lumpur 2:58 - 6:30
The total cost for the entire ride is about $14.