Save your bike and your money with this strong & solid U Lock (or “D Lock”, depending on which way you look at it) - with mounting bracket included. Suitable for a range of application - fences, gates and of course bicycles. Price is only $8.95ea (+ $6.85 shipping for 1 lock to Melbourne, gets cheaper per unit the more you buy). Shipping price depends on your location and any other item(s) in your cart.
Going price for similar or equivalent item is about $25 per lock on eBay or $20 on Reid.
We are overstocked on these so they are priced to clear. Hope they are well received.
I would suggest a Vulcan Supreme 2000
https://rideonmagazine.com.au/locks-test-2013/
from the ebay link provide by the OP, instead of this generic "D" lock.