Its really up to you, I have opened up a ton of consoles over the years for people and the PS4 seems really simple to do but for some reason I really don't feel comfortable opening mine.We don't have an U4 CG trailers.
I'll look it up, my warranty is obviously history as well since it's a launch unit but if it's not recommended I won't open it, Thanks for the help.
Just watch a ton of youtube vids and keep track of screws etc. You should be fine.