How come that kitchen only cost £6000 ? The standard price for fitting
a kitchen in London is around £2000 and it looked like they had used
the kitchen supplier's fitters for the job.

In any event, given all those wall units, and island unit, and fitted
appliances, and wooden work surfaces, wouldn't the cost of them alone
have been more than £6000 even from one of the cheapest suppliers like
B&Q ?