I was typing a response just like this.... You said it better though @TOOLOW91I wouldnt pay 350 for a gt40 cobra intake. Now if you told me you were getting the explorer gt40 which is the same intske for 150 bucks then id say hop on it. there are much better options out there either way. No matter how you slice it rebuilding your stock bottom end with machine work and parts and all you'll be somewhere in the 1000-1500 range using what is in there and just re ring and re bearing with freeze plugs and cam bearings.
Why the dire need to rebuild? why not just throw an HCI on the car or put a blower on it with supporting stuff and make close to if not 400 hp on a stock engine and have it drive just like stock.