a stock neo would happily shit out 300~350kW all year round btw..
since you have cash to fry, I would straight out go twin scroll, T4, twin gates, and a EFR7670, basic cams no more than 260 degrees, and as much boost as you can b4 you reach the turbo's safe RPM zone.
OR GTX3576 with a 1.01 rear, same shit as mentioned above but in T3.. and put in as much boost as possible.. those GTX 11 blade compressors need boost to boogie.