1) Departing crew meet up at Queens Building (freight) or at the gate (pax).
2) Time to move from one terminal to the other is less than 10 mins for 1/2/3, however a little longer for 4/5. The overriding factor is that on arrival you have to take the bus through the customs check. This is a short ride for a pax trip but with the freighter you have to pass through a security check .... which may take 20+ mins.
3) Try Heathrow Lodge small family run business close to apt Tel 01753 686970