I did ask seller why it was removed. 2 reasons, #1 he is now retired and they want to travel and with coal as only heat source it required draining pipes before they left. #2 house guests/sitters did not know how run the furnace/stoker and would allow clinkers to build to a point there was no heat.
News seals and bearings is not a problem, its what I do for a living. Are tuyeres a replaceable part? I'm guessing new replacements might be hard to come by, but if they unbolt I can make new ones, just need to know what type of steel to make them out of, again its what I do