For 71-72 tail light lenses and gaskets, CVI may be your best bet.
https://www.cvi-automotive.se/en/articles/21034/5-taillamps-72
www.gcp.se has the 71-type 'Deluxe' badge in stock, it's p/n 687217.
The 'Volvo' emblem for that era is p/n 677724 and may be hard to find.