pic and info request -- 76-78 Caddy El Dorado brake calipers for rear disc conversion

[shiner2001]

I just ordered a set of captainfab's brackets to convert my rear drums to discs on my 72 and am looking to source my calipers from a 76-78 El Dorado so that I can have an ebrake (to be set once a year to pass safety inspection...if they even actually check it, but better safe than sorry). It's looking to be pretty pricey to buy the caliper set up with the e-brake brackets in place, but I'm trying to see how exactly they work so that I can fab my own e-brake set up. If anyone has these calipers, either mounted or not, and can post some pictures, that would be great. Basically I am looking to see how the e-brake brackets and springs are mounted, as well as what they actually do when the pedal is set, so that I can start work on making my own. The caliper that I am looking at starting with is this one, Cardone #18-4116.

Any info helps!!