My mate makes 270kw on a 2.3L stroker with an FP Green and runs a twin plate clutch.
He is absolutely f**king ruthless with the thing. Does multiple limiter launches every single day and absolutely smashes gear changes unbelievably quickly. Has never changed gearbox oil and the car has about 100,000km on it (evo 9 btw). But seriously, he has zero mechanical sympathy for the thing and it has never had any issues (except for shitting a rear diff once)
Runs a variety of tyres from rubbish to AD08R's on it, so the driveline would be getting a huge workout. His gives me a lot of faith in the standard driveline. I think with 350kw, a nice friendly clutch and some sensible driving you should be fine.