For those US based members, if you are interested in acquiring a kit which contains an assortment of push pins, fastening clips, well nuts, screws and bolts etc. for your body panels, I've attached a link from the Burgman USA site that might be of interest.
https://www.burgmanusa.com/threads/burgman-400-body-fasteners-on-alibaba-group-buy-offer.178944/page-2#post-1834913
Although it says it is for the Burgman AN400, if you go to the Alibaba site and search for the similar Silver Wing kit, you'll see they are pretty much the same.
I have no stake, financial interest or any organizing involvement in this Group Buy other than that of a participant. Uncle Fester over on Burgmanusa.com initiated and coordinated this group buy and I believe he may have some kits still available. He is a trusted member there.