camshaft oil seal gasket lubrication

What is your question?

Will be installing new timing belt, cam/crank seals, and water pump. Not sure how to lubricate/seal cam seals during install. Seen videos and read of mechanics using Vaseline, dielectric grease, dry, motor oil, assembly lube, etc... Pack seal inner lip, don't pack seal inner lip? Lubricate the outside of seal or not? Use RTV or High Tack on the outside of the seal? I want to do this only one time without any leaks