I'm about half way through this conversion. I purchased a set of 1988 4Runner S12.8 calipers off ebay for $76.50.
For my own safety and to make things a little more future proof I got them reconditioned. I live on the Northside of Brisbane so I dropped them into "Stainless Steel Sleeving" at Brendale and for $132.00 each, they came back like this:
(I was most impressed)
Comparison next to my original 71 Zed calipers:
I just need to get some rotors for the front and away I go. I've read about the Pug rotors, Magna TP rotors and 200sx rotors but if anyone could shed some more light on the most simple rotor to deal with I would appreciate it.
Cheers