Had quite a decent quote, 6.5k for 15 plus units, 3k for granite, 1.5k for appliances.
Comparatively, I've had similar quotes up to 17k. But the price seems to depend on the door type, rather than differences in the unit carcass.
It is a large kitchen, so it's never going to be cheap.
Are they decent kitchens? This price is a mid range door.