They do have the 12700 for £40 less and they also have the 12600k for £110 less.That board will ^^. Do they have a 12700 / 12700F as an option? If so that would help for your choice of cpu cooler as those two cpu's use less power and create less heat than the 12700K / 12700KF.
They have many selections of coolers too, I just don't know which to pick.