aftermarket temperture gauge
Keep in mind some electric versions come with the sending unit, some don’t. The gauge and sending unit added together is almost as much as a mechanical. A “full sweep”Mechanical is nice as it shows the temp more accurately as well as reads the temp when the engines off. I know SW is maybe more than you want to spend but a full sweep range such as shown is better than a half sweep with big jumps of the numbers as shown.