So how long for the whole thing?
Can't say for sure, until I have printed it - Cura is not giving the precise printing time (probably due to not quite up to date firmware, or something), but going by the print times given, 24+ hours (and that's with resolution 0.2, I dare not think how long it would take with 0.15 or 0.1). Including walls, roof, and either a closed or open blast door (I'll probably print both).