The UK doesn't have just a Manifold and turbo, it has full BPU supporting mods also, ie FMIC, FCD, Double Decat, colder plugs etc. He hasn't just bolted a turbo straight on. The only thing he has left stock is the fueling, thats because the UK spec has bigger injectors so he could get away with it. The jap spec would struggle.
You would need to buy a full turbo kit if you wanted to do it, ie turbo, manifold, DP, Oil feeds, either a standalone or piggyback ecu etc. If you have a standard Clutch it'd be best to upgrade that also. It IS possible to do it on a budget, as a few people have done it. The UK spec for sale is a good example as he's kept it simple and gone for modest results.