Replace the whole S7e screen or just the glass? Where to buy parts?

I want to fix my Galaxy S7 edge screen.

I guess you would normally replace the whole screen,

but i could maybe get away with just replacing the screen like in this video:

https://www.youtube.com/watch?v=pAdF_hNh...

There are ways to get the glass off with heat or with cold.

Should i try this? Or is it too risky?

And further, if i settle with replacing the whole screen, where should i buy it?

I could just wait for iFixit to start selling them, i asked via mail when they start selling them.

And at last, i read that if you use B7000 glue to seal it it will keep it's water resistance.

I'm thinking about just leaving it as well, it's just a bit annoying.

Maybe i'll get the Note 8 when it comes out, the S-Pen seems really nice, and i think i've heard the s8 is going to have software buttons so i'm guessing the Note 8 as well, well, i'll see.

I could try doing the glass-only repair if i get the Note 8, what would i have to lose ;D