Use gift cards for an extra 5% off ($360, via NRMA/RACV etc). Any more Big W promo codes atm? Seems like an OK deal considering past prices were box damaged deals.
Looks like it comes with the multi tool, normal big head, wall charger and mount.
Also just get an adaptor and use power tool batteries if you already have a system.
Not purchasing personally, but popped up in the app.
Get JB to price match, then pay using discounted gift cards.