Caplipers aren't seized - the pistons move no problem.

I'm leaning towards a clogged up ABS pump - one Porsche expert suggested that enough moisture may have seeped in while the car was sitting that the ABS pump got corroded. I believe that's up behind the passenger fender - going to pull that off and see if I can get any fluid before the pump. That would also explain why the fronts barely bleed.

I have the factory manual - not the greatest - I was suprised how little it had on the braking system.