Don't drain the oil unless you suspect it some asian "fish oil". Bring it home lying down or vertical. By the time you get it wired up and minimal plumbed all will be good. I've done all sorts of gyrations to air compressors and the only caution is not to let condensation water back into the compressor head/ valves.
Enjoy!
Enjoy!
Busy Bee 12-36 lathe, Busy Bee Mill drill, Busy Bee 4x6 bandsaw, Homemade 9x17 bandsaw, Ad infinitum.