yea, I know you can have three..but it's not like you have to read all of that.
Two isn't enough, in my Supra (88T) it had temp, oil pressure, oil temp, and boost(no battery).
Anyway, my point is yes all that monitering is a good thing. You will be able to tell what is going on under the Hood
. Personally I would like to have oil temp, oil pressure, tranny temp.