I am happy to build custom wiring. This is often useful to cut down on the number of connectors and power robbing wire length that you would have by plugging together stock sizes. Maybe you have an aileron with two servos driving her. This to can be done as can about anything you can imagine. Pricing is simple.
All measurements are from back of connector to back of connector.
Please allow appropriate slack. Also, it is a good idea to test your design with string. No return of custom wiring. So, get the measurements correct. This holds true particularly for Y's and Extensions built into wings.