My advice for this run is to not even attempt it in the one hit, I wouldnt accept a job that not only needs to max out your hours but becomes a battle to make the run in the variying road conditions. I woudn’t do it and like other experienced drivers would recommend you should look elsewhere for a job. This type of run is not a day job albeit on the night, let some half wit try it and deal with the stress that it will cause you. Whoever has planned this run is taking the michael. It may be possible but that is at the very best of conditions with no traffic to deal with, this has been planned on a computer by a non driver. It is virtually impossible to not get any roadworks or traffic delays travelling this distance.