Replace Headlamps

I'm looking at replacing both of my headlamps due to wear and tear on them. I've tried restoring them myself personally and professionally, but neither have truly restored them to sparkling new so i'm just gonna go ahead and fully replace them with brand new ones.

Is there a certain Brand/Manufacture I should look for when buying them? I'm currently planning on getting these ones:

Seems legit to me, just wanna make sure before I spend $200 on them.

Also, how hard would it be to replace them myself? Never done something like taking parts off my car before, so i'm a bit hesitant on doing it myself. Depending on how much it would cost to do it professionally, I might just go that route if it's more on the intermediate side of a skill set.

Thanks!

 

-160k
-I followed this video

and used the local shop I always use to try to restore it as well
-How risky is that? any possible way I can damage the vehicle when removing and replacing the bumper?
-If it fixes my current issue, sure. But i'm not too sure if that's possible at this point.

And it's not cloudiness, it's more of a scuffed headlight.

Obviously not my car as I couldn't get a good picture of what i'm dealing with, but it resembles something like this:

 

Looks simple enough to me. Guess i'll at least attempt it before I pay someone else to do it.

Thanks!