Like you I have a modded radeon.
I figured I'd rather take time to learn how to do it right & save money, have the tools afterward & get a superior product.
I had previously ordered a full 1000' ($350) spool of belden 1694a, and I had a generic palladin crimper. I wanted to use neutrik connectors (look on partsexpress) but could not (after much research) and still have not found a sensible way to crimp them short of buying neutrik's insane 1-task $450 crimper.
So, I used cheap sleazy 1-piece BNC's at $0.86 each & heat shrunk tubing on top. Then zip-tied the thing together all along its length, and voila!
I intend to spend a bit more time trying to figure out (research) if there is a superior video cable, too.
Any suggestions on the neutriks is appreciated.