Honestly the brake system can be completely rebuilt for about $300. You can buy rebuilt calipers, master cylinder, wheel cylinders and the brake hoses. If it were me at this point I would replace all of them and have lifetime warranty parts and sit back and drive on. I do it to every CUCV I rebuild and have had 100% good luck. Replenish the DOT 5 fluid and bleed the old fluid out of the system. You would be amazed at the filth and crud in that old brake system. Especially since it has been contaminated. Good Luck. Fix it right the first time and drive on.