I do the same as Brad, flat spot on a flange. If a drill stop (from the Hillman hardware section) is used and the pin fitted to it, some degree of depth adjustment is possible.
What a shame. Sorry to hear you are having to downsize. Fortunately as I retired I UP-sized to a huge
3 car shop beside the house. But, not all situations permit this, I DO understand and have been there
before.