No I don't believe you are asking stupid questions, how can it be stupid if you don't already know the answer. Stupid answers
Reason I ask location is this is the sort of Job i'd probably not invoice to test/make safe if I was passing. Other than heading to Liverpool from kent last week for my Goddaughters graduation I haven't been that way for many years.
I love Liverpool, great place! and thats a kind offer, i will get an electrician in, its no bother- from the sounds of things it will be relatively cheap to get it made safe and isnt a big job for an electrician.
My biggest concern with the cable was that i would get the fireplace plastered, paint/paper everything- then when i update my fuse box find the cable behind the fireplace keeps triggering the more sensitive modern consumer unit and that i need take the plaster back down.
