My First DIY Power Cable

Got a cable , connectors and a little shrink tubing.  Any recommendations on sheathing?  Didnt want to buy a 100 foot role on Amazon.

Ok.  I think I am going to go with the Viborg copper connectors off of Ebay.   Could someone recommend a moderately priced cable that would be a good match?  

In the assembly stage.  Is the Furutech FP-TCS21 a directional cable?  I see what looks like little arrows on the cable markings.  How much does that really matter?

OK , I think I am a bit overwhelmitized 🤔  with all the choices. 

Thanks for the responses

Nevermind, Got the answer, it is directional.

Got the cable tested (continuity, short & voltage). Plugged it into AV amp to test. Then moved it to main rig and plugged into my amp. 10PM Sitting there listening and thinking look at me and my new ability and bang the entire house drops off the grid. I am thinking , did I just cause that?  I just went to bed by candle light. This was the action in my backyard and 4AM in drizzling rain.