I am going to do that on mine. However, since I am keeping it all original (for the value of that) I will use a removable bracket and mount it under the dashboard, so that any future owner can just remove it. The "idiot lights" that are on it now will continue to work, just have the gages so I can really see what's going on. Oil pressure is easy, but because I am keeping the original oil temp sending unit, I will be putting an electronic sending unit in the oil drain plug end of the pan for the new temp gauge. I am still pondering the temperature gage though. When you figure there are tens of thousands of air cooled engines out there running with NO oil temp gages on them, you have to wonder. If I really get concerned about the oil temp, I can always carry a hand held infrared gun with me. Personal choice, I guess.