Lillnex

With what you described as your needs, this would be the best option. Although a PC would be way, WAY better. Nevertheless this is what you're probably looking for: https://www.amazon.co.uk/ASUS-GL702ZC-GC104T-17-3-inch-Gaming-Laptop/dp/B073Q4G661 Unfortunately no 4K, but you can't expect it in this price range. Either lock yourself in fancy-pantsy integrated GPU Intel laptop at 4K, go for a slightly stronger laptop at a higher pricetag or well... PC or this laptop without 4K.