My mate put a highflow on his NEO with stock ecu. Runs 10 psi without a hint of a problem.
It will flow more air at the same boost but I think what you have will allow for it.
Put it on. Take it to a dyno and wind boost into it until it stops being happy. That's not a slap dash approach, it's really what you should do.
I would suggest a 2nd hand AVC-R will help more than a FPR because you can monitor your injector duty cycle and increase the boost in a controlled manner.
Maybe a rising rate reg with a higher ratio if you can find the cash. This way you wont make it run like a rich arse pig off boost.