Reply to Cajon midi controller

Hi,

I've got a cajon which I want to turn into a midi controller. The idea was to put some touch pads on the front and maybe some knobs or faders on the side. Don't know how viable this would be as the cajon is made of wood, and considering this would be my first project of this kind I wanted to now if there are any kits you can buy or any sites where anyone has attempted to create such a thing.

Harry