Hi guys, I am user that perfect lanterns for long time, cca 10 years. I have one Petromax hk500 cca 2010 and Gold Mohar from cca 1950. Both are used for lighting and heating too. I have designed for the spare parts the box. If you will wish, you can print it by the 3d printer. I will send you the stl files and/or I can upload it to Thinkiverse.
Welcome from Queensland Australia. Nice boxes. Looking forward to seeing your future posts on your lanterns. Cheers Pete