Im gonna take a stab and ask are you wanting actual guages or guage displayed on carPC, as this is a carpc wbsite for the most part.. So assuming you want it on carPC then you need a OBDII adaptor that links to the PC then create a skin or use ones alreadt created to link the oil, and other cool info.. you can also read MAP, timing , and other stuff your not aware of you would find useful some you can even adjust all from the PC..on the fly, my favorite is reading codes and clearing them prior to inspection..lol
now if you want actual guages then i would suggest getting a Hanes manual and follow the wire diagram to find what wire links to the ECM and then simply buy some guages and hook it in and I presume it grounds to the chassis. Im not gear head but i believe these are standard not made particularly to a certain guage/sensor example would be a o2 sensor reads voltage very small amount, gas guage resistance, temp guage reads resistance (thermoresistor) So i would be inclined to think that any oil guage of be compatible..visit Autozone or Napa as they have aftermarket guages and would be able to open the box and retrieve the directions so you got a better understanding of how universal they are. There are many here that can shoot you in right direction, I suggest looking into fabrication forum and looking around using search word guages. let us know if its physical guage your wanting or if your implementing it digitally into the frontend of choice like Riderunner, Centrafuse..ect..