Welcome! If you are going to assemble the engine I would use “Best Gaskets” they are available for your Lincoln. I would get a shop manual or at least a blue Motors Manual which covers your engine. Both will contain all specs and the assembly order. If a shop is going to do it and they don’t have an old guy or someone who is knowledgeable RUN away with your stuff fast. I realize they are are just a mechanical air pump but care needs to be taken but more mistakes are made because the proper time is not taken. Replacement parts are expensive or maybe hard to find when the mistakes damage hard parts. There are many here that know these engines and are willing to help. Good luck with you project and have fun…