One day someone's gonna burn their house down because of these amateur wiring jobs. And when the fire brigade examine the scene the insurance company will pull out on you.
+1
If you are going to attempt this type of set up, then at least get it professionally checked out.
I was a firefighter for 25 years and it never surprised me the things joe public set up at home, and when disaster struck how devastated they were.
Insurance companies would attend incidents whilst we were still their, and would take advice from the firefighter in charge as to his findings on arrival
at the incident.
What might have been just a simple two electrical appliances off one socket, extension lead not fully reeled out loaded with electrical gadgets, basically
dodgy wiring often lead to no payout or at best a claim battle.
Not worth the worry. Get it done safely and by a qualified person. IMO
Steve