So I am thinking to do something else.
ill run another conduit from the main house sub-panel that I have on the other side of the garage just for the N4400.
I think it is better than installing another sub panel.
What is your recommendation about the A3-31? (That will be upgraded to 3P machine)
The J/P is just next to PP and I think it is a bit waste to run another circuit for few months of usage)