hey mate, previously was doing some research on changing the screen due to crack issue.

if the glass only some shops was offering me between 400-500 max

if changing the screen with the LCD going to cost you between 1400-1600

You might want to do a bit of readings if you going to change just the screen. some people say that it is not going to last longer because the glue that they are using to change the screen that will eventually cause the screen to pop-out a bit in years time. but again, to change the LCD together is really expensive man!!