Hey Bub,
some things will be better understandable if you have the machine in hands. But I would do the most research possible while waiting for the machine. Especially
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Read the Fine manuals (PDF)
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Browse the FAQ documents
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Watch the Onefinity Youtube Support video channel, especially:
Are you already familiar with the CAD/CAM software of your choice? If not, mastering one can take monthes too, especially 3D model creation. You could use the time that way, since you will need it anyway, and it would not be that satisfying to have the machine here and to have this monthes-long learning still in front of you