Designing it yourself has a number of benefits.

With a scan, you can adjust the overall size - but not the size or shape of any individual component.
You've got the basic file so can use parts on other projects. With openscad this is particularly easy - it's just copying and pasting some text :-)

Plus you learn a lot about designing by backwards engineering a part.

Apple still use lcd screens - even cheap android phones use led based screens that are stronger, brighter, use less power and won't die if you accidentally leave it in the car overnight in winter.
I'll just leave that there :-)