Yes I re-cabled those myself, they are easy to get apart with just a small flat screwdriver.
The voice coil wires on the drivers are very fine and the tabs or tangs they attach to are just press fit into the driver housing. They are extremely easy to tear out which will render the driver useless. If your lucky you can reattach the wire like a few of us have done here. So you need to pop out the driver housing with great care.
I chose the 250 over the 600 as there is minimal if not any sound difference and the 250's will work with a greater variety of devices.
Ended up grabbing some Beyer T90s...
Anyone have tube pairing recommendations for these cans? Can be EF95/EF92/EF91 or C3G and 6SN7s or Russian powers.