Gee, to get back on topic:
You have $11k to spend. Ok, I think turboge had a good suggestion: get a Haltech ecu and get turboge to tune it for you. Intake, exhaust, run up the boost with the stock internals and see how far you get with that setup. Then, if you still want more, you can go with building up a motor with forged internals and more boost. Perhaps a different turbo. Etc.
Not only could you have fun with this, you'd be helping a bunch of us on this thread learn more about where the limits are.