"You'll save a lot with ikea if you build the carcasses yourself."
Just coming back on this because I had issues with it! I booked our builder to do the kitchen. However, before it had all arrived (thanks to the massive delay), I became aware from the utility installation that the builder wasn't that good at second fix. I tried to jump ship to an Ikea installation team instead, but I couldn't because I'd already put the base cupboards together myself. These days, they will only fit if they get the entire job, start to finish. I had to stand over the builder and watch everything like a hawk, which was incredibly stressful and upsetting (and am still having to do this, witness yesterday's fracas over the ovens). In future, I'd always get a second fix joiner, not a builder to do a kitchen - but that's just my personal experience, and maybe I'd feel differently if things had gone another way.
Ebay is really great for LVT. I managed to get 20 square metres of Amtico signature parquet in a herringbone style for £300! It's about £75 a square metre normally. However, because you're buying what's left over from a project, quantities tend to be small. There are larger lots too, but these are rarer to find! I'm hoping it'll be enough to do my study and my hallway.