Have a search on ebay and filter ‘Sold’ prices, IMO as low as £600, also see the For Sale section in the T6 Forum.
I sold mine for just under £1100, some parts separately, It took a while but I wasn’t in a hurry and didn’t drop the price.
It’s supply and demand, one thing to mention though is there seems to be enough availability to put buyers off damaged equipment. Taking time off work and driving long distance is part of the cost so if you are the only seller in the area you are on to a winner, if not I’d wait until you are.