V
Varley
Good luck with your job, mate. Suspect it will take longer than two days though. 3.5m of 4" tiles is about 350 tiles to fix, you may need to grout the wall at the beginning of day 2 unless you are going to use rapidset on the wall. A lot depends on how may obstacles you have to cut around.
It is a good tip from PJC to try and get some tiles on the floor and have them set overnight so you have something to walk on. Again, rapidset would help if you can't do it the day before.
Grumpy
Great advice there grump, couldn't agree with you more, I would have allowed 3 days for this.
As the other guys have said, walls first then floor.