Driving from UK to Lagos (Has anyone else done this?!)

I'm going to be driving from the midlands in the UK to Lagos PT in around 6 weeks.

My rough plan is -

Thursday Night - Drive to Dover and catch the midnight ferry to Calais, arriving at 2am, drive all through the night through France into Friday

Friday Night - Hopefully I haven't exhausted myself and had to stop earlier, planning a stayover in Bordeaux

Saturday Morning - Get up early and begin the drive into Spain, crossing Valladolid and Salamanca before heading down to Seville

Saturday Night - Follow the south Coast and reach Lagos hopefully by Saturday night.

I want to know if this is too ambitious, basically giving myself 48 hours to do 26 hours of solid driving, has anyone else done this? I do have the option to stay over again somewhere Saturday night but would ideally like to be in Lagos by Sunday morning at the latest.

Comments/ Thoughts / Criticism all welcome!