Chris Bird has posted a video of my Mikado with his Summerlands Chuffer that he developed for the Mikado. Makes a real good sound and is very easy to install and has a very low price.
http://www.summerlands-chuffer.co.uk/#/9-aristocraft-mikado/4536770516
http://www.summerlands-chuffer.co.uk/#/9-aristocraft-mikado/4536770516