I always use the same procedure as LG explained above. I ensure all the parts are clean and dry first, then I use "the right stuff" silicone as the sealer medium. sparingly.
sometimes I will use the aerosol gasket adhesive on the cork parts when the engine is upside down. there are also plastic stakes that screw into the oil pan bolt holes in the block so the gaskets and oil pan can be held in proper alignment. they have bumps on them to allow the gasket and pan to slip over them. felpro makes them, they are called snap ups. it's like haveing a third hand and can really help alignment on jobs where there are alot of things that need to align at the same time
https://www.felpro.com/technical/tec...h-snapups.html