Adding a roof basket and cargo net transforms how you pack for long drives. It keeps the cabin clear for passengers and handles the bulky stuff that does not fit in the trunk. Prices are often lowest in early spring before the summer travel rush hits.
You can manage the $380 cost by breaking it into manageable payments. Don't let the gear hold up your plans when you can spread the expense over a longer stretch of time.
Remember that this 0% offer is just a window of time, not free money. If you have a balance left over after 18 months, the bank will start charging interest on whatever is still owed.