Jet 69 Cobra Restorers, EARLS, Cobra accessory, Canton and some others. Here's the thing,It's easier to buy the kit from ERA unless you have done stainless steel braided line making. Aluminum wrenches are needed to not damage the fittings or over tighten the connection. You don't have to use aluminum wrenches but steel ones will mark the fittings.
Era has the lines all cutting the correct length to fit your car. Price wise you are not going to save alot of money. The only thing you may want to look at is an
oil thermostat. If you are racing the car, the external cooler works great. I really works too good because the
oil never gets to the correct temp for the best protection of the motor.
Oil likes between 180F to 210F again depending on the manufacturer. There are some threads in here to look at about this. Some guys cover the opening of the coolers. Cooler climate areas or cool morning runs, the oil doesn't get hot. Same thing applies to truck and some high performance cars that have oil coolers that run to the radiator to help heat up the oiler faster and control the temp. It also pulls heat from the coolant too. Good luck with the build, Rick L