I was thinking about this more last night, and I think since the upper ball joint will be bolt in place, that I'm just going to use a small jack inbetween the control arms and begin pumping them apart to remove the ball joint. That way, I won't risk damaging the LBJ, and it seems the the UBJ should remain seated.....

...then again, maybe just use a pickel fork and get it done with.

By the way, the $10 ball joint puller you are refering too, does it look like a dampener puller by chance?