I'm doing this task right now.
As an aside, I really like the ability to read archived internet forum posts on stuff like this prior to bending any wrenches. And bugging Charlie about it too. The chief concern probably isn't oil leaks, it's slight air leaks leading to a reduction in oil pressure. The gasket around the pickup tube should be coated liberally with grease. The manual calls for "sealant" on threads. Those AN fittings and braided hose are definitely the hot ticket for all you cork sniffers, make sure you have the matching color-coordinated wrenches