Can I replace a black LCD screen for a white one?

I have an iPhone 6 Plus with a white LCD screen. I dropped it several weeks ago and the screen shattered pretty badly, but the phone still worked perfectly. I ordered a new LCD screen which my brother was going to install, but before we had a chance to replace it, I dropped the phone in the pool. I managed to retrieve it in less that five seconds, but it still had significant water damage and is now apparently unusable. It turns on when I plug it in, but then it goes blank. Now I'm left with a brand new LCD screen and no phone to put it on.

I found a phone online the same model as mine, the only difference is that it has a black LCD screen. The screen is a bit cracked on that phone also but I don't mind, it's cheaper and I can make use of the LCD screen I already bought.

So, my question would be: can I replace the LCD screen of the black phone with the white LCD screen I bought? I'm pretty sure the answer is yes, but I don't really think I'll like the look of the black home button with the white screen. Could I use the home button of my white water damaged phone on the black phone, or is it likely that it is water damaged as well? The home button seemed to work normally when I managed to turn my phone on a couple of times after the drop, before it started going blank.