I have a 71 G10, straight six manual drum brakes all around. I'm wanting to hotrod it out and was thinking of getting a later model front subframe with a hydroboost disc brake setup, adding G30 springs, drop spindles and an LS3/4l60E and then swapping it into my 71. Is this a possibility or is there a better way to go about it? I can't find anyone that offers a disc brake conversion for this van.