Hello all, I guess I am relatively new here. I have a small stove collection I will share soon but for all the budget fettlers like me, I have found a source for missing parts. They are not original ( apologies to the exact part). As for stove keys, any of the major auction sites sell keys. House keys, skeleton keys and CLOCK KEYS. Some clock keys come in 3,4,5 mm square and are long enough to use in an 82, Svea, or Optimus. The second item is the flame spreader. There are the cross type and silent burner covers. Your local engine machine shop has brass freeze plugs. Using an old flame spreder as a pattern, I laid on top of an 1' 7/8 cup type plug. Copy the design and cut out. As far as silent burners, 2 1/8 deep cup brass freeze plugs supply the blank. Its up to the craftsman to drill the holes. I have experimented with these and if done well, can hardly be distinguished from the original.