Charlie there are quite a few of these mowers.... I've never seen anyone using one to mow their lawn, but obviously there are a lot tucked away in sheds..... There is usually always a complete mower or engine on EBay, and if you wait you can pick them up cheaply.
Lurker, thanks for the kind words and later on I may get the kick starter working properly...... But since Ive been warned by the police (twice) not to ride this on the road all I can think about is starting my electric build early next year when I have money for engine and batteries, I just miss riding my bike :-(