If you want to roughly follow the route to Penang that RL Kaleuns did, then sail down and around to the Brake. Refuel at the Brake and then head up to the Arabian Sea. Have some fun there before heading across to Penang.
In total it could take as little as 60 days to get from Lorient to Penang or as much as 90 if you decide to patrol in the Indian before docking.
Don't worry if you forget this though - you will receive messages to this effect.
