Welcome Patricia!
I would get these for you but there is a supply shortage in South Korea at the moment it looks, so there are certain parts still on back orders from most sellers and dealers.
Try SIMMA FRANCE (EU importer) or check eBay Germany for Gv125S parts being broken up by a salvage yard
Crazy as this sounds , you could go to a garage and ask them to dig out a very big O-ring that is strong, they can hook 1 side and pull it to the other side to hold the battery down, if its a very thick O ring.
Exhaust shield = If simma doesn’t have it, could a local garage get someone who works with metal to cut one for you to fit and weld it to the bike ?