Stop in for a cup of coffee

OK my friend who has a machine shop is strugling he cannot get the castings for a big company he deals with due to China supply issues. I mentioned to him there is a market doing older car parts, simple stuff. Any ideas what is needed alot and not available easily? I am having him make up some RB to B distributor adapters for me. Any ideas? he is not a automotve shop. Dam place is 320' x 220" built in the 1850's and did mostly cannons and guns for almost all the wars and has CNC machines also. I told him to do a Tour every other week the place is amazing to see.

View attachment 1715942787

So at 320'x220" that is only 18 feet wide but 320 feel long. Would be an odd looking place to see too! JK..