most registered sparkies will not sign off and notify others work, but you might find the odd one or 2 if you could show then that you had sufficient knowledge to do it such as cable calcs, and pictures of the runs and stuff, and providing that they did the electrical testing themselves..
others might be willing if they can come and inspect your work at the first fix stage to see cable runs for themselves..
then you have friends or family who might be willing to.. ( such as my second cousins husband ) since I'm a fully qualified sparky but not registered.. ( he's happy to sign off any notifiable work I do in my own home or other family members, but not any work I'd do outside the family )
Whats this then Noz?
and no apologies needed, like I said, i must learn to use smileys where appropriate to indicate joking..