Since you just want streetable horses, and you already have the intake, rockers, and e-cam why not just buy the cheapest aluminum heads you can find and slap on the needed valve springs for your e-cam. I would also recommend 24lb injectors or 30s if going the charger route. After this you can either throw on a 100 shot of NOS or a simple used supercharger. Im sure you will surpass your goals and spend less money than the combos mentioned above. good luck!