As an aircraft avionics guy and a broadcast engineer - I'd echo the 2 connector solution. I am working on this question from another thread in this forum - so maybe we should solve this for everyone and post the results here - or in the How To section? (I haven't gotten that far in my project - so I had not started the research - but I was going down the same path)
Recommended Scenario: 2 connector solution with Mil Spec bulk head connectors and shielded sensor wiring. Plug 1 should be all the power and servo drive connections. Plug 2 should be the sensor connections with shielded wiring.
I'd be glad to do the legwork to build a solution and post some material sources if you'd like (I'm going there anyway - glad to share). If someone can tell me the scope of what you need.
Ex:
What is the max project requirement ? GM stock ECM config - or something like a FAST, Bigstuff, etc. Do you see the need for additional capacity ? If I build this for the max need you'd have additional capability if you don't need it today. Etc.
Here's one of my current vendors on connectors:
http://www.wingselectrosales.com/connectors.html
Here's one from the other thread:
http://www.newark.com/jsp/content/pr...=single&page=8
PS, RyBar - beautiful install sir !!