You've got it right, Jan. This steam engine will probably give me little work. Clean it and that's it.
I don't have a burner yet. But I know a seller, whom I got to know through the German "Ebay Kleinanzeigen". From him I will get the matching original burner sometime. This requires only a little patience. There are also some other sellers. But this seller (pseudonym: private) sells at moderate prices.