Assuming the pics you put up are your engine then you wont get there. A semi open deck block wont do 700bhp without shatting itself im afraid :(
APS are just bolt on bits and mega expensive for what they are IMO, to get high power figures you need an engine speced from the block upwards, literally every part internal will need to be speced for it, balanced crank, rods, pistons, heads would need to be speced to take it as well valves.
As suggested i would decide what tuner you want to use and take advice from them. Just be aware there a re very few tuner out there who regularly build big power cars.
Only two i would want to use for something like that would be Scoobyclinic or Enginetuner.