I started practicing autos myself in the past few months and tail blades, tailfin, landing struts and skids could be handy spares in case you come down with the tail low or land a bit too hard.
But to avoid that I'd strongly recommend lots of sim practice and be confident there before you take it to the field.
Also setup autorotation bailout on your fbl if it has it (most do). That way you can spool up quickly and fly out of the auto, a good way to practice the descent without having to land it.
And start practice high, gives you extra time to control the auto and bail out if you want or need to.
Landing an auto is awesome, enjoy.
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