Ended listings go on your Unsold List for 60 days.
You are not refunded the fee when you end the listing prematurely.
When you relist, you will be charged a new fee.
Nonetheless, the small financial pain (60 cents or less) is better than negative outcomes from an impatient buyer.
BTW, if you only have 4 fairly small items for sale, you could carry them with you, keep an eye on your account and ship any that might sell.