Great price for this mouse. Down to $59 on clearance, via their website, plus the further 20% off via the eBay code, they appear to have listed it on eBay today.
Previous deals here for comparison/discussion. This appears to be the cheapest ever price - same as just over 3 years ago.
Edit: Standard delivery appears to be $5, or free with eBay plus. No C&C option.
You don't need to pay via Afterpay. If you pay the full balance by gift card, you won't need to use Afterpay at all. Select afterpay as the payment method, apply the code, apply the gift card to pay the balance in full, submit order. Details here.