Just a thought wouldn’t it still be under warranty. Something like a haze definitely didn’t come from you or the prior owner. Just saying I’d check first.
Otherwise YouTube is your friend if there’s anything out there that new...... The only real issue you have with these modern bastards and that goes back the last 35 years is the pry points. Virtually nothing is just screwed together anymore and something usually overlaps and hold something else and you have to know how to get those off which in most cases requires prying up and some hidden tooth in various places to get out what you need to get at.
Once you figure out what to pry and where without breaking it it’s usually pretty self-evident. One word of advice praying and plastic is the cold. Don’t go praying on Cole plastic if you can possibly avoid it. Get out the magic hair dryer and get it nice and warm or there will be tears

.
If you do have to do any prying it might be a good time to invest in one of those cheap auto body pry tool sets. You can get them anywhere and all they are is a plastic version of your favorite steel pry tool. My set cost probably eight dollars and I think it has four pieces. You’re very seldom ever use the things but when you have to pry on two plastic things you don’t wanna screw up they do come in handy.
Sent from my iPad using Tapatalk