I'm done and have about 20 spare leftovers from years of hoarding. For the most part stored in a HD540 Gold foamless wooden case which is included in the sale. Everything is stock authentic Sennheiser in stellar condition with two exceptions listed under misc. I added the SKU for parts to my knowledge no longer available. A few increasingly hard to come by specials here but, the mega grail by far is the NOS velour HD540 earpad set. Pure unobtanium this day and age and fans like myself are recognizant of the chance of it being the last pair ever. Yes.. ever. FYI, I punched a finger size hole in the seal to make sure their required adapter rings are attached as well. Confirmed.

Package deal only so shipping to one address. You could team up with others to split the goods.
Pictures asap. If there's questions regarding details PM anytime.

- earpads
HD540 sealed SKU 46962E
HD430 SKU 033166 (great HD540G/HD250 alternative)
HD6XX sealed (new transparent variation)

- cables
HD580 3m SKU 081435
HD6XX 1.4m SKU 570679
HD6XX 3m
HD6XX 3m with Neutrik 4-pin

- foams
HD540G/HD250 felt rings sealed SKU 032856
HD250 sealed SKU 037691
HD400 SKU 033175 (''next best'' HD250 foams)
HD540 4 pairs sealed
HD6XX 2 pairs sealed

- misc
HD540/HD250 strapless headband arch (somewhat loose slider - unsure if useful)
HD6XX earpads Brainwavz (possibly knock offs - could not get them to properly fit)
HD540 thin fabric 1 pair [ link ]
HD6XX thin fabric 2 pairs [ link ]