I'm making a wardrobe using 15mm contiboard for the carcass and door. The wardrobe will be going in a corner where the right-hand side and door-edge will be unseen. The door will only need to open 90 degrees. I do not have a forstner bit and so cannot use concealed hinges. What type of hinge will be best, given the thickness of contiboard and the fact that the hinge will not be too obviously seen? The door will be approx 166 x 61cm. Advice please?