Or a combo, entirely wrap and seal the A3000 in super bubble wrap. Fill 5 inches of bottom of box with peanuts, lay in A3000, fill sides and top with peanuts? For safest transport you want the items to be packed in so they can't move around, so REALLY the best solution would be super bubble wrap and buy/find a box with less leeway.
This is exactly what I'd do.. Best overall solution.