I've managed to track down the 2017 Derby entry conditions as fees have gone up this time. They are:
£560 stake to enter (first entry) by noon on December 1st, 2015
£1100 extra if not scratched by noon on March 7th, 2017
£3400 extra if not scratched by noon on May 23rd, 2017
£2800 extra if entry confirmed by noon on May 29th, 2017
Total Cost: £7,860
or
£9000 stake to enter (second entry) by noon on April 4th, 2017
£11250 extra if not scratched by noon on May 23rd, 2017
£2800 extra if entry confirmed by noon on May 29th, 2017
Total Cost: £23,050
or
£85,000 stake if entered by noon on May 29th, 2017
£560 stake to enter (first entry) by noon on December 1st, 2015
£1100 extra if not scratched by noon on March 7th, 2017
£3400 extra if not scratched by noon on May 23rd, 2017
£2800 extra if entry confirmed by noon on May 29th, 2017
Total Cost: £7,860
or
£9000 stake to enter (second entry) by noon on April 4th, 2017
£11250 extra if not scratched by noon on May 23rd, 2017
£2800 extra if entry confirmed by noon on May 29th, 2017
Total Cost: £23,050
or
£85,000 stake if entered by noon on May 29th, 2017