I know but what is the purpose of the car going to be? Just to say you can rev that high? How much money are you willing to spend? how much power do you want to make?(like I said unless you going for 700whp+ I dont see the point, I'm positive you can make 600whp+ with a 8000 rpm limit)
I'm not knocking you at all so please just open up to what I'm saying.
Things you need: (I dont know much

)
To me 1st of all you you need a purpose of doing it, as in competative racing of some sort(even dyno racing), or to advertise/promote.
You would need some nice rods, pistons, billet mains, lighten/knife edge the crank, underdriven accessories(prob electric water and oil pumps/drysump), a good standalone ecu and ignition, the best headwork you can get/larger cams to actually make power up that high. If using a manual trans you need a billet flywheel and clutch thats rated to go that high(looking at a 1 of a kind peice$$$), NHRA spec scatter sheild, ect..