Any ideas on how to strip this wire/cable?

Just box it up & send it to me!

SRSLY, though, the way I would do that is to put it in my vise & Dremel down one side.



If that took too long, maybe try a wide blade wood chisel down one side, making cuts as far apart as you can get away with, then a BFH to finish splitting it.

Actually, now that I think about it, I might start with the chisel option. Maybe try putting a coupla pieces in the deepfreeze to see if that helps with removal by making the plastic more brittle/easier to split?