Recommendations for a custom cable company

that will make me a 42' cable with mini DP (iMac) fitting on one end and HDMI (big screen TV) on the other end, and 24 AWG copper wire. I am aware that adapters are available such as the Moshi Mini via the Apple Store but I prefer the custom cable.

If you have had a good experience with this or something similar please share it if you would.

Thank you!