- 11 hours
2,4. not sure, but can be done e.g., if you are not an expert at driving on highway during night-time you can always tail/follow a Daewoo bus and it would save you trouble of oncoming headlights and unknown road/traffic conditions.
- atleast CNIC, Driving License, Car registration book
- Should be there by nightfall
IMHO 12am start from Lahore is better, and you can take short breaks at Daewoo terminals like Khanewal, RYK (chowk Bahadurabad). Don't take Khanewal-Lodhran road as it is in broken state, rather get on motorway M4 after Khanewal to bypass Multan and get off where it meets N5 for BWP.