I wasn't planning on having one of these in our new kitchen extension, but our builder has built the kitchen 300mm longer than the plans. I could now fit an American fridge in assuming it was 900-1000mm wide. We were planning on having a built in fridge 70/30 fridge freezer measuring 600mm, but I have always been concerned this was not big enough, as we used to have both a fridge and fridge-freezer (especially useful at Christmas). Is an American fridge the answer? Thanks for any advice.