I will do that, thank you lol, I do have a line on a 468 from someone local to me 468 bbc 550hp, built for the job and with the trimmings as well and capable with head and cam change have been told to 700hp and balanced rotating assembly to 7k rpm but will likely stay at present if i can secure it to the current build, untill i can afford a couple of extra Bravo's , I will likely see it this weekend.
50 hour weeks till its all bought, built, and ready for babes on the deck lol

I am still in the learning process and not sure if 7k rpm is realistic in a 468? But it would be cool :-D

I think you should wander over the the classifieds and buy a complete drop in ready package. You may actually stay in your budget too if you are a smart shopper.

FYI the bravo I at the power level you are talking won't last long, but around 500-550hp will last a good while if you treat it right.