Except Marc's team actually had highly detailed mechanical drawings of those parts, so the only hard part was finding someone who could manufacture them. Thankfully they had connections in that area.

Yea, that definitely made things immensely simpler but it's still a good reference for seeing what kind of problems happen. I'd also imagine that for most connectors you aren't going to need nearly as robust or detailed drawings or data about them to make something that will work. In this case they also wanted something that would mate up perfectly without any possibility of damage or excess wear on the connectors.