Greg is building an outbuilding from concrete blocks. Base of the building is going to be a 32 ft x 28 ft rectangle. The block walls will be 10 ft tall. The concrete blocks he is using have a face that is 16 in by 8 in. He is laying the concrete blocks in such a way that, length dimension of it is along the perimeter of the building and width dimension is perpendicular to the base rectangle. He has already laid two rows of block all the way around the perimeter of the building. He is able to lay an average of 30 blocks per hour. How many more hours will it take him to lay the rest of the blocks for the building? Do not account for door or window spaces or overlapping of blocks in the corner areas.