Understood.

As our clients have found out, you've only got two options at your disposal.

First is to have CableMod make the desired length for about $40~$50.

Welcome to the CableMod Configurator!

Second is to carefully slice off the heat shrink, clip the zip tie, and mod the assembly on your own (or with somebody's help)

150 Piece Solder Seal Heat Shrink Butt Connector (Green,18-16 AWG)

1850W Heat Gun Variable Temperature

Self-Adjusting Insulation Wire Stripper

It's easy to see why people go with the first option.

CableMod is definitely the better choice, if nothing else they use better materials, and you can go crazy on the design.