I too am anaesthetised to top end Bathroom product prices, as the company I subcontract for regularly sells 15-20k bathroom jobs. I’m glad they don’t tell me how much some of the stuff costs as I’d be afraid to take it from the box.
2 weeks ago we broke a curved piece of glass for a shower screen, it cost £2000 I later found out!
I wouldn’t go for the cheapest cheap, there’s an awful lot of crap out there that’s not fit for purpose. ‘brassware’ is the big one, lots of chromed plastic taps available on line. Toilets can be mis-shaped (quite often) and the seats have plastic hinges.
I’d go to the local plumbers merchant and see what they have and recommend.