Ex-Nun's Musical Organ Tank made from more parts than I can remember. The side skins and armor will need to be printed 1 extra time mirrored for the other side. The Braziers will need to be printed twice, mirrored if you like or not. The exhaust pipes will need to be printed 4 times. This is a complicated piece that will require some modeling skill to put together.
Good luck! Post your pics when you are done.
Check out my other models at https://www.cgtrader.com/leesedrenfort