They ask for serial which you can copy and paste from the "About this Mac" dialog box that is in MacOS.
From there it asks you the year of your laptop which is also in the same dialog box.
From there it asks you which CPU version and core count you have (for M series laptops with multiple options.) To get this info, you click on "More Info" on the same dialog box(In Sonoma you also click System Report and it is all there).
Afterwards it just asks the condition of the laptop (ie, does it turn on, screen cracked etc.)
I don't see why you would need MacRumors for this.
They ask for serial which you can copy and paste from the "About this Mac" dialog box that is in MacOS.
From there it asks you the year of your laptop which is also in the same dialog box.
From there it asks you which CPU version and core count you have (for M series laptops with multiple options.) To get this info, you click on "More Info" on the same dialog box(In Sonoma you also click System Report and it is all there).
Afterwards it just asks the condition of the laptop (ie, does it turn on, screen cracked etc.)
I don't see why you would need MacRumors for this.