I would have thought for a job this size they would only be looking at around 2 weeks to lay max.
That's 285 sqm per week, and just short of 41 sqm per day working 7 days a week.
When using 600 x 600's doing long days "14 hrs" you should be able to lay that amount per day, but you won't be doing it just on your own, it will be nearly a full time job just for a second person to be getting the adhesive mixed and combed out and sorting the tiles ready to use as your laying them.
Then maybe towards the end of the first week getting a third person to start the grouting.
This size job isn't for the one person with what time frame the club owners will probably want it doing in.
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Also you will need to be fitting expansion joints in every 10 meters in all directions too, or changes in substrat or anyother obsticles like pillars ect.