fearie, Hello and welcome to the forum. Can you count the number of teeth on the rear wheel brake drum? That will tell us what basic model you have. Is the bike from UK, as number plate letters look old UK style. If so, can you read them all?
At a first look you have the basics of a good machine. You need a speedo (genuine types very expensive) but the other parts, steering damper, ammeter, switches are all available either used or new, but made to poor quality standards in some cases.
The toolbox and back mudguard look to be from a later (maybe different) model.
Do not worry about your English, it is very good, and do not be afraid of asking questions about anything you do not understand. Have a good look around the Forum, most of the problems you will have can be found, and you may even find some new English Words not in the dictionary!
Best Wishes.
Swarfy.