I don’t own this, but I thought it looked amazing value for money: 304 stainless BBQ from Costco
Firstly, it comes from Costco so is deemed good enough for the American market (who are very picky when it comes to grills). Costco are very good for warranty also.
Secondly it’s made of good quality 304 stainless steel. Not a crap cheap grade that will quickly spot rust in our moist climate.
Finally, it’s got an infrared burner for searing. That’s something most BBQs > £1000 won’t have.
Slight downside is it’s only 3 burner and not huge. Bigger than the Weber Q being mentioned above I imagine though. At your budget the compromise will be quality vs size.
If you have a Costco near you then take a look.