How easy is it to replace the Dell Latitude e7450 screen to 1920x1080? Is it better than the 1366x768 one?

I have a Dell Latitude e7450 and i really like how easy to access the internals for upgrades, which is something I really miss on laptops nowadays. I really like this as a work horse laptop.

However, the screen on this laptop is pretty below average. I see some 1920x1080 screen replacements on ebay or amazon for the 7450. how easy is it to upgrade the screen. will it be better?

Would you just recommend upgrading to a 5490. What's the difference between the build quality on these devices. They seem to look the same at first glance.