Rear panniers: Beckman Designs "Modular Tandem" panniers are designed for maximum carrying capacity and flexibility, with a front section that zips off if you don't need all the space. Originally designed for tandem tourists, who need to fit two people's worth of gear on one bike, they are also great for anyone who needs the extra volume. These bags are new, never used.
From Beckman's description of the modular panniers: "The current modular version of the Tandem / Expedition is commonly built in an 18.25”-long version that has three lateral compartments, with each compartment being accessed by a very long 40” entry zipper. Generally, the inner compartment, which has a vertical zip-out divider forming a fore/aft, dual-compartment design, is the widest compartment. In the widest version of this model built for the greatest tandem gear-carrying capacity, which has a capacity of 3600 cubic inches per pair, the inner compartment is 5.5” wide (from the rack outward) and the two outer pockets (compartments) are each 2” wide. They are the most fundamentally advanced, and versatile panniers available for tandem touring. Combining the most advanced four-point mounting systems, triple compression systems and HDPE perimetric stiffeners, this Discovery Series model is dramatically more stable and has a much more advanced gear-loading design than any other tandem or expedition-oriented pannier on the market."
Front panniers: Beckman Designs. I'm not sure of the exact model, but they are a smaller set, sized for front use. While they match the rears in color and general design, they are not modular. These were used once, and basically still look like new, although they have a few light scuffs.
Front and rear racks: Bruce Gordon racks, made at Bruce's shop in Petaluma, California. These had light use, but I had them powder coated matte black (they look cool) due to some scratches in the paint. Super-strong, yet light, racks. Current new retail prices are $232 (rear) and $207 (front).
More photos on my CrazyGuyonaBike ad at https://www.crazyguyonabike.com/classifieds/?o=tS&classified_id=5589&v=h. I have plenty of detailed photos, which I'll be happy to send to serious buyers (having problems uploading pics here).
Price for the front and rear Beckman panniers, and matching front and rear Gordon racks is $799 plus shipping. I'm located in the Philadelphia area.