The FAQ is there for a damn Reason! its funny - googles making billions but you wouldn think it by looking in here. you just piss people off when you ask question that can be answered with a 10 second search
autotrader.com - find out how much they're going for in your area
srswap.com- SR Swap is the name im sure they have some prices for you
Phase2motortrend.com - Has more than enough shit to get you to 500HP... add it up.