I found a Reddit where somebody low on cash moved one by drilling a hole on the opposite side of the parallelogram pins and pushed them out with a drift and press then pressed them back in on the new one.

Is anybody aware of any part of a Shimano Di2 and cluch RD you could easily disassemble and move over the clutch?

I find it hard to believe that pin is permanently in there. Is there not a little mini c-clip or something you can pull and then slide it out without "force and wrath"?

If the answer is no, I ain't touching it. I'll just buy one. Just wondering as I have both sets of parts laying around.