#3 Gappy Window

In a fit of spider fearlessness I have stripped the wallpaper off a lot of the living room. HOWEVER, around the upvc window there's a bit of a gap -

When I come to paint the walls, what do I do with this?! Do I need some kind of sealant in an awesome gun thing? Help Me, Dad!

#2 Cornice Thing

So assuming I manage to remove the awful cupboard in a delicate and professional manner, what do I do with this!?

They sawed off a piece of the cornice to fit the ugly cupboard. I want to put it back! Can I do that?! I tapped it and it sounded hard so I think it's plaster. Help Me, Dad!

#1 Corner Units

OK So there's this awful corner unit on the wall.

It needs to go away for ever and also before the plasterer comes to skim the ceiling. How the heck do I get it off the wall!? all I can see are these two screw bits in the side cupboards...

 


BUT! There's nothing in the middle cupboard!

Is that right? If I unscrew the left and right thingies will the whole thing fall off? Do I just go incredible hulk and rip it off the wall?! Help Me, Dad!!