pyrometer is a good idea too, drill / tap a hole in the exhaust runner for the hottest cylinder (4cyl - usualy the one farthest from the throttle body)
its 1/8" pipe thready, easy to drill, easy to plug afterwards, and youll always know the engine isnt 2 degrees from being entertaining pieces to look at on your desk
my buddie works for a company that checks engines. They upgraded to a better one and so they sold him all the lm-1 kit, and other extra lm1 parts they had laying around. He sold me the o2 and the big ugly box, and i went to innovate website and ordered the power cable, serial cable, and the sensor cable. All for about $50 bones.