no its all built all you have to do is fit the filter and heater, anyone can do that its so easy!
the light would have to be mounted into the hood, nothing a few screws cant fix. it does come with a hood, i belive, or plastic ones can be bought for 3 quid or so, go to P@H for the tank, they have them really cheap as starter kits where you get gravel and dechlorinator with them al for about £20