Ian Rogers

I have the above 51 year old bike which has been in store for 15 years or more. It is in fair condition and the engine turns over the brakes operate. I am wondering whether to sell it on as is or do a full job on it to bring it right up to standard. I know very little about the model and if I can get any necessary parts or a workshop manual? How many of this model were made and what it’s value might be. Any info gratefully received, Ian.