As a much more noob than the OP evidently is, I'd wonder if he took a picture of his completed work and to ask a follow on question that I didn't see come up.
How hard would it have been to put an AMP-50 connector on the end of the existing cable and use a purchased 25 pair AMP-50 extension to move the end where ever it was needed? I've seen AMP-50 extensions used in this fashion, I just don't know if they were field terminated or if that is even possible.
Thanks.
Rowan