I used a 3D printed dimple die…
And then used these for a larger drain hole…
https://www.amazon.com/dp/B07P7SBKWX?psc=1&ref=ppx_yo2_dt_b_product_details
Used disk sander to reduce the thick of the top flange to match thickness of the bungs that came with the table.
I would have gone with the welded sink drain option, but not confident enough in my TIG skills yet.