Make my own loom

[geeman]

Hi all,
Ive recently been contemplating on the thought of making my own loom from scratch, just using the existing connectors from the original sierra loom, i kno i could buy one or use my existing sierra loom, but i wondered what is involved in making my own. I have a 1.8 carb cvh, and wondered what are the minimum connections to it are actually necessary to pass the iva, ie, do i need most of the sensors on the engine. Also i plan on using the sierra Haynes diagrams to build it, but does anyone have any suggestions as to if there are more useful diagrams available to build my own loom. Also i remember reading on here somewhere that someone else had made their own loom? should i use my existing fusebox as well? Thanks