Completed today on tail end of fever. The pipes were OK, just some mikey mousery by previous owner, forgivable in my book. Thanks for the comment Medic. Used OReilley reman calipers. Came in two different sized boxes, by two different reman shops prolly, they looked alright as could be determined by eye. Everything installed with minimal grunt, just one of the hydraulic line input ports was rough and needed patience. It leaked a tiny amount first time through the bleed but settled when I freed it then re-tightened.
Bleeding couldn't remove a soggy feel on instant pedal pressure, would firm up on second and third push, good enough find the rims fit so time to hit the road to bed in pads.
Soggy feel was a bit disconcerting but the brakes !! Blimee, didn't take much to prove to me that this is a great upgrade. Then fever called me to the couch for the day.
Today, I bled the brakes again starting at the rear and encountered the weirdness of ABS systems. Doing the Up/Down two person method, all of a sudden there was no action from the pumping. I remembered reading something about a brake actuator pump that was the answer to what that motor running is. So turned on ignition and the brake fluid flowed as required. Bled whole system flushing it and replacing fluid. Now I've read even more threads on forums and wonder which way to go to get the peday to feel like a brake system, ie instant response.
Any clues out there ?
Thanks too to Desert4runner for your help.