i have 6 grand to spend on my motor, definately headwork, roller rockers, 70mm TB, stage 3 cam, crow timing gear, tune. what else? its gonna get a good rebuild.
ditch the throttle body and the "crow stage 3 cam", get a cam thats suited to what you plan to do with the engine - or even better a custom grind, not just an off the shelf grind.
be very carefull about mixing big cam's and roller rockers if they are going to be of a higher than stock ratio. too much lift will likely result in an expensive mess. you probably wouldnt want anymore than about .600" of lift max, and to achieve that much you'd need the heads done and maybe some shortened retainers too.
im not sure if your intentions are for a full rebuild or just the top end, but for $6k on a top end rebuild on a n/a engine - id be looking at getting the heads ported and shaved raising the compression, while they're getting ported have the runners and manifold port matched, a decent size cam...preferably a custom grind, rollmaster timing gear, if applicable to use with the cam choice maybe some roller rockers with a spring and retainer kit, grab some new injectors and have the fuel rails cleaned, then get it kalmaker tuned....you might even have some change left over, lol.