I have the chance to buy a 1984 short bed Chevy truck that needs a few things done to get it running. The truck was in the middle of a build when the original owner needed to sell it fast so a friend of mine picked it up and is now offering it to me for 1500 bucks. The truck as it sits now goes like this....

Built Turbo 350 trans with a 2500 stall torque converter. The motor is a 454 that has been bored to a 468. As the motor as it sits right now it has no rods in it, no cam, no lifters, and no push rods. Has GM performance racing heads with roller rockers and heavier valve springs. high rise intake manifold and a holley 750 that needs to be rebuilt or maybe even replaced with a new one. The motor needs a cam, lifters, timing gear and chain, and all the bolts for the engine got lost so it needs those. The motor also has Keith Black pistons in it but i am not sure of the clearences so that leads to my first question...What to do for a rod/piston combo??? i would like the truck to be in the 450-500rwhp range. Could i buy a master rebuild kit with stock pistons and rods and get away with the power im wanting to make or is that flirting with disaster? I would like to use the KB pistons but have no idea how to go about matching them to a rod. Does this project sound like its worth the 1500 bucks my buddy wants for it? How much do you think it would cost to get it running at 450hp? Thanks.