Hi metrc_taper
There is an additional plate on the table which is very handy for two reasons: like you have pointed out the additional tee-slots and secondly the increase in diameter significantly improving the clamping area. I would like to say it was my idea but I bought the table from a friend who was clearing his late fathers workshop and he made the plate. The tailstock was a good find that just happened to be the correct size. Can’t remember where I found it
The motor I have is a Nema 34 and I will be making a adapter/housing to join both the table and motor but I am waiting on the coupler to arrive so I can ensure the dimensions etc are correct. I did order a coupling but somehow bought the wrong bore size.
Thank you for your interest