Installing temp guage sensor(aftermarket)

I have the typical problem with my temp and feul guages. I replaced the voltage limiter but my feul guage registers 5/8 when full or doesn't work at all and the temp is dead. I can live without a gas guage, but a temp is mandatory. I bought a set of mini trio guages and would be perfectly satisfied with that, but the sensor for the temp guage is bigger than the hole where the original sensor goes. So I get to looking, and I can't find a spot anywhere on that 225 to put that sensor. Anybody found a way around this? My car runs cool and has never overheated, but I don't like not having a temp guage.