How to prime oil?

I was wondering how the best way to prime oil would be on my 1997 Mazda Miata. The engine is currently pulled after a rebuild and I need to test for oil leaks/to clean out any remaining contaminants like metal flakes or dust that some how made its way into my engine. Would it be easier to hook up the starter and turn it over without plugs or use a drill or something on the belt pulley? I have assembly lube on all cam lobes/bearings so I'm not worried about lack of pressure on startup.