When I disassemble something like that, I lay the parts out in sequence and tape them down. Way too easy to mess it up. The exact stacking order is critical because they are a matched set and should NEVER be disassembled. Tolerances are minute, maybe a couple of thousandths of an inch. So you could set the bit, disassembled, next to the next bit in the set and try to stack the shims until the two interlock as precisely as possible. But if you get even one shim wrong, the set is not going to work right. Good luck, but you could also ask if you can return the set and have Sommerfeld arrange to rebuild it. They're very helpful there and may even have the jigs to do it, or access to the maker.
