Have you looked at some of the ex-display kitchen sellers? I think you can give them your kitchen plans and they can work to see if they have anything suitable. Often these can come with the appliances which can work out cheaper (if you were planning on speccing high end appliances).
I'd not considered ex display no, its a good shout.
I had thought about standard carcasses from someone like DIY Kitchens with custom fronts , but haven't seriously researched. Other than Plykea and the like, is there anyone else who does this ?
I've found Instagram pretty useful for finding things that I like and messaging people about it - generally I've found people like talking about the work they've done.
Have you looked at some of the ex-display kitchen sellers? I think you can give them your kitchen plans and they can work to see if they have anything suitable. Often these can come with the appliances which can work out cheaper (if you were planning on speccing high end appliances).
eg https://www.theusedkitchencompany.com/shop/ex-display-pronorm-kitchen-with-island-and-worktops/
Alternatively you could get cheaper units and get custom doors, worktop, sink etc