HI guys, I'm a lawnmowing contractor in Adelaide. I've always wanted to restore a Scott Bonnar mower.Recently I acquired this. A 20inch mower with a Kirby motor, which is cactus. Happy to replace it with a new Briggs. I have attached some pictures and ID plates. Engine plate HK30 L1259 Serial no 1273 5266. Plate on the mower body is 45 90225. I have removed the motor and the clutch assembly, thanks to the fantastic tutorial on the web by you guys. Basically, can you tell me the history of the mower, when it was made etc and if in your opinion{s} if it is worth restoring to its former glory. Many thanks Llew