After waiting for MB to ship all of the misc. parts from Germany - and still a few minor replacement parts out of stock - like one of the sensor wire clips at the brake hose connection, I went ahead and replaced the master cylinder & reservoir, both front ABS sensors, both front brake pad wear indicator cables, all four brake hoses and ran about 4 quarts of fresh brake fluid through the system to flush to clear color. Also replaced the heater blower while waiting for the brake parts.

Many thanks to "MB Stars" for your helpful advice!! She's once again "The Beast" that she always was!

Frank