>>529951265
start by planning the foundation first before anything else - keep elevations in mind and plan for an exorbitantly oversized garage to house all your huge refineries and ten foot tall tacoma trucks
actually you might want to start with building the hangar first, since that shit eats up a retarded amount of space - something like 80% of the floorspace for picrel ended up being hangar and garage with conveniences laid along the way