The main difference between a 700HP Honda and a 900HP is the turbo size. Most everything else stays the same.
With $8,000, I'd forge the bottom end, get a GT30R, mild port job on a VTEC head, upgrade the valvetrain, get ITR cams and get all of the supporting mods.
Call Main Stream. They built my 630whp Integra. They can tell you what you can do with your budget.
678-567-9384.