I know this is off topic. But were you list the electric fan. I found a solution for our 3.1 stroke, if you find a late model s30, 280 i believe. The factory thermostat has 2 holes for senors. 1 for the water temp gauge and another for the fan. Plus the electric fan relay to that and its been the best method for us no more probes in the rad.
Also since were looking into possibly getting rid of our 3.1 and going for a rebello. for them to make you one fully built its and approx, 10k cost