Volvo V40 1.8 Shifting bushings/gear belt change

Hallöchen, I am proud owner of a Volvo V40 1.8 since today, very relaxed driving, and especially the leather seats, bomb-like in combination with seat heating! Now to my actual question/problem, and indeed the sockets are closed off from the switchbar, which is why the 1., 5. and the backward gear are bad or not at all put in. I found instructions for changing already in the forum, I am only concerned about the spare parts procurement, because the next Volvo dealer is about 50KM, easy ride, away. I have been looking for original equipment on the Internet, but I have not really found anything, and wanted to ask for advice about spare parts of Polar Parts or Skandix whether there are experiences with it, or if you can call me a first outfitter. The second problem would be the upcoming zam belt change which is imminent and has already been covered by 5tkm, but the belt is still not porous and the teeth look good, yet it is due after 120tkm. Would be a tooth belt, WaPu, spanning rolls etc.