I came across this post researching spares for my volvo portals.
I have converted mine to disc for a very reasonable cost compared to some of the kits available.
Here is a brief video description:
I used Toyota Hilux brake calipers and rotors (early 1981 - 1985 solid rotors), rebuilt calipers I had lying around and bought brand new rotors for a few hundred bucks. The laser cut brackets for all 4 ends were less than $50. The only expensive thing was getting the drive flanges machined down to fit the rotors and new stud holes drilled, I also had rings machined up to be welded on the back side of the drive flanges to give a flat surface for the wheel studs to seat on and add a bit of material back to the drive flange.
I am running 39" stickies and a Lexus V8, its stops just fine but this is an off-road only vehicle (buggy).
This was about 6 years ago, cant remeber the actual cost, but it wouldnt of been around $1000 AUD mark all up for 4 corners.
