AN UNBIASED VIEW OF 4AGE 20V ITBS

What other sensors need to I search to add in excess of the standard 4age, inlet air temp in addition to a wideband sensor have already been suggested, is there anything else I should incorporate? If there is not a patch harness, how difficult can it be to help make my own patch harness specified I haven't any past wiring expertise? Cheers PaulNow