Have you tried space slide or Jali as they list prices but I wouldn't say particularly cheap. It may be cheaper to get the plasterer back and go freestanding? You could pick up say a french armoire from ebay for a great price and you know it's good quality. Do you just need doors or sides too? The other option, if doors, is maybe to buy some french louvre doors, shutters or a room divider from ebay and have the carpenter make something up. I want to do similar for window shutters. I like these from the french bedroom company for £362 (w180'h208) but they're not tall enough for my windows unfortunately

They don't have any quite like that but have a look at Revival Beds: http://www.revivalbeds.co.uk/

yep, a standard lamp will be fine, but would need the plug changing on it to a 5A one (round pins). it's just the plug socket that's different so that nothing else can be plugged in there. Might be nice to have but I think the benefit is diminishing these days with smart lighting.

The cheeks are the fire resistant bricks which are either side of the fire opening and are bedded into the ordinary house bricks forming the builders opening. They sit either side of the fire back.