(De) Activation Dilemma due to selling console

Good morning!
I am sorry if this questions had been asked before.
I currently would like to sell my activated PS4 Phat 5.05 because I've got hands on a Pro with 6.72 and I've even got another one on 8.0 for online gaming.
My questions are:

-Do I really have to deactivate the phat by using the psn website and while doing so deactivate all my other devices (Vita, PSTV, PS3 all jailbroken)?

-Could I retrieve the activated profile from my phat 5.05 and insert it in my Pro 6.72?

Remote play is not to important for me- I think it never really works satisfyingly.

Thanks guys!

 

Thank you!
I now came to the solution to deactivate the PS4 Phat by activating the online PS4 Pro with the same account. I know... multiple accounts and just one brain...
So thanks for forcing me to think.
In any case I am now backing up all files of the PS4s HDD by ftp before clean wiping it in case there will be a solution in the future for retrieving personal activation files of the Ps4 like there is on the PS Vita.
Good day to all