Re: cooker hoods/extracters are they necessary?
I got mine from a guy in Galway, had a warehouse full of appliances and sell the ones with damaged boxes / minor scratches from his garage .. he advertises in the buy and sell.
There are plenty that sell for under £100 on ebay, decide when size, colour, type you want. Then decide the price you're willing to pay, use an auction sniper to bid on tons of them until you get one at the price you want.
Bear in mind that companies on ebay can often post much cheaper than individuals esp for heavy items so check the postage.
I buy nearly everything on ebay, just got our stove from germany - only 80 euro postage for over 100kg and nearly a thousand euro cheaper than locally!