I think you will struggle to get a kit for that - In fact, reading the reviews of that beer I reckon brew a coopers Australian Pale Ale but with a Citra/Simcoe hop tea in just before bottling (robably 10g of each, or 20g of citra in a cafietere of boiling water for 20 mins, then plunge the plunger and add the liquid to the brew).
That should get you reasonably close. 100g of hops shouldn't set you back more than £5 inc shipping and you will have enough for at least 5 brews, so it's only going to cost an extra quid, and will make a dramatic difference.