” all of which will weigh about 150-155 lbs.”
Double check that that is the total new load.
If so, sounds like you’ll be fine but I’m no expert.
I agree from afar.
One might suggest that OP utilize some sort of rubberized mat, etc, on top of the table to eliminate slidiness.
Consult with a local craftsman, perhaps an instructor at an artisan school, to be sure.