Ikea! But if you want to do the legwork for your own piece of mind,
Decide what appliances you want and research the prices and work backwards from that. My rough breakdown for a large kitchen and separate utility room :
4k kitchen units and laminate worktop for utility room from ikea
3k quartz kitchen worktops installed by separate supplier/contractor
6k appliances sourced separately from various places to get the best prices including sinks, taps, boiling water tap, extractor hood, domino Hobs, double oven, dishwasher, wine cabinet, American fridge freezer and water softener.
I was very particular about what I want - be aware that howdens only offer a rather limited and basic/economy range of appliances. Pan drawers seem to be expensive so i have practically all pan drawer units from ikea! All other kitchen quotes were did not come close and mainly comprised of basic shelving units with 2 sets of pan drawers so we decided it was worth the hassle of a few journeys to save a few thousand pounds!
Units assembled and installed for 1.2k
Excludes electrics, plumbing, flooring, tiling, Under cabinet led lighting, customised splash back.