10.75X68 German 1903 Springfield with loading supplies

I hate to do this, but I need bike repairs.  Extremely rare cartridge in an even rarer gun.  1903 Springfield (wartime capture?) with German proof marks, chambered in the powerful 10.75x68 Mauser - the most powerful of the Mauser cartridges.  Also called the .423 Mauser, it uses the same bullets as the .404 Jeffery.  Very light rifle, weighs about 7 3/4 lbs.  One standing and one folding leaf rear sight.  Bore is excellent; crisp and sharp.  Stock is, well, useable.  Old repair to the wrist is very solid.  Recoil pad is an ill-fit orange rock at this point.  Nice light trigger.  I pulled the ejector out because it needs to be stoned or replaced, and because I don’t want my valuable brass flinging onto the ground.  Comes with a brand-new set of RCBS dies for .404 Jeffery (will do neck-sizing and bullet seating), 41 original Kynoch 400 grain solids, and 57 Bertram brass; all but 8 are un-fired.  No trades - I need money to repair my motorcycles.