buy a hr parts and stuff driver side and a stock passenger side. pull the front wheels off and go in through the wheel well. with a big block of wood carefully lift the engine up with a floor jack or if you have a engine hoist you could lift the engine that way too but the hoist legs may be in the way. i did this a year ago for a member on here but we did a lot of changes at once so i cant remember all the details.
long extensions and a swivel will help. also make sure your driver side exhaust manifold is not cracked as well while your in there, usually cracked where 3-5 come toghther real obvious with a flashlight.