Motorcycle purchase

Hello, I am Cobrus and new. I know that there is probably already a lot to buy a new machine in the forum, but contrary to other habits I as a newer did not just want an old thread hijacken. My concern is this. I have now for a good ten days my driver’s license (A unlimited) and consider whether I still buy my own machine this year. Basically I have a Kawasaki ER6f in view, which I want to get from a nearby dealer. I can be lucky and November will be good again, I can have bad luck and I can make the bike winter in the next two weeks. At least here in the Harz the latter could rather happen. However, I also have the fear that I will forget everything that I have trained myself in the last weeks and then for rerun lessons as much as for the driving licence a What would your advice be, also with regard to driving in November? I would also be interested in whether you should accept dealer prices for motorcycles unquestioned or whether there is a room for negotiation as with cars and how to explore it. Thank you for your help. Cobrus