The Moog 60hp skiff is the best for your need, but get a mini internal power bus like: https://www.thonk.co.uk/shop/fc-microbus-kit/ so you don't waste 4hp for power module. Also later when you grow you can get another 60hp Moog case and double it up with their dual brackets. 4MS is your next possibility: https://www.rubadub.co.uk/4ms-pod-60-eurorack-case-powered