Update - I had it dynoed tonight and it ran well though we discovered that the wastegate actuator was stuffed. It was kind of opening the wastegate and holding 23psi though it ended up dying completely, so now I need to get a new one and take it back so I can set up the EBC and complete the tune.
We did get it up to 232kW @23psi though there is more in it than that - i.e. we can put more ignition advance into it.
I'm now running E85 fuel with 1000cc injectors, hence the power increase.
I'm also limited on power due to my ECU not being able to map over 20psi. My tuner reckons we could safely run between 25psi and 30psi if the ECU could do it.
I'm going to stay with the current ECU for now and just make sure the car is reliable (it hasn't been to date).
I've posted in the wanted to buy section for a new genuine Toyota wastegate actuator if someone knows where I can get one cheaper than from Toyota.
I'll post a dyno graph after I get the final tune done.