You're welcome.
There are some cheaper motherboards ,so those would really get it under 800 pounds,
https://uk.pcpartpicker.com/products/compare/fjPzK8,V9WfrH/
differences are in audiochip,onboard headers,things like that. Do look for your self for a case as well,maybe some like these are more to your liking,
https://uk.pcpartpicker.com/products/compare/TpZQzy,y7YWGX,YhzZxr/