Get a LS6/lS2 cam if you can it can usually really cheap and friendly to boost. I would go straight to 80e. You can get a low mileage unit for $500 add a shift kit and you can hold 700hp. I would go with a different fuel pump. Either AEM 320 or walbro 400. Same stall is avaible for 80e only an extra $100. Godspeed makes a decent product for BOV. Otherwise you are on a great path.