-case prep tool. Lyman is pretty good
-tumbler for case cleaning
-some sort of priming system- Lee Ram prime works fine
-Hornady bullet puller
-trimming system- Lyman hand trimmer does well for cheap
-powder measure
That is the minimum I would add to what you have already. 9 and 45 are time consuming on single stage, but you can make really accurate rounds. Don’t trim pistol brass.