Yes, I tried the pulling and hammering bit, but it's stuck fast. I've always removed stock wheels with no tools Also tried some other puller techniques I shouldn't mention here as it might kill some of the young 'uns if they tried the same.

Bolt circles are 2-3/4 and 3" (dual pattern)
The diameter of the hub is 3-3/4 inch.
The bolt are like M6 or something really really small (much smaller than 1/4" threads).

Datsa, Memorial Day is the end of May. Is there is a weeknight at Monroe?

What the heck was I thinking about Memorial Day? Yes it is on the 25th and we do have drags that day.
I may go to the evening one at Pacific on the 20th.
My tool should be able to pull that. It's not the standard pulley puller tool like you may have. It works a little different. If it doesn't work, I can make something that will work.

OK, got it removed. I put some thick washers in the hub, put the wheel back in and slowly, evenly tightened all six little screws. It finally popped off.

Why would somebody put thread locker on the shaft? That's what it looks like to me, no wonder it was so difficult to remove:

A trick I dicovered whilst a Datsun apprentice, to remove a tight wheel, unable to find the workshop puller and never needed to again, was to rock the wheel up and down (quite forcefully),up and down the column to free up spline resistance, works every time not only on Datsuns.