You Can! Not only do I have several different physical disabilities/disadvantages, but I'm entirely self trained - I haven't got a single qualification to my name! If I can do it, ANYONE can, As long as you know what you want to achieve you'll get there!
Although I hadn't completely it, it did work and held time really quite accurately. However, before I got chance to complete it, it got irreparably damaged in last years flooding
So, hopefully soon there will be an even better Mk II version going into production.