Rear disc conversion....

What my rear discs will consist of:
http://www.wilwood.com/MasterCylinders/MasterCylinderValves.aspx part number 260-11179, 61.50. GM metric weld on brackets, don't remember where I got them from, but I can find out, $20. GM Metric calipers, just got prices/part #'s from Rock Auto, Autospecialty/Kelsey Hayese 4082073, right side, loaded, 18.09, 4082074 left side loaded, 18.09 and rotors from a 77 Lincoln Versailles, raybestos # 6045r (right) 29.99 and 6047r (left) for 30.79. I think the total so far is 178.46. My axle has big bearing Ford Ends. But the brackets I have are welded onto the tube, so I think axle end is not important. Been a long time since I have seen an 8 3/4 rear end, but as long as it has the standard bearing retainer plates do not see why this would not work. You will be on your own for flex tubes, but a buddy told me that on one of his past cars he just used flex hoses off of a Caddy that had Metric calipers on the rear. I will not have an e-brake, but the metric calipers are available with them, just different part #s. Just checked on Rock Auto, 87 Eldorado had rear discs, so id you want E-brake those calipers are 71.79 each.....