I would do everything I could to prevent oil starvation on startup since that's where a ton of wear occurs.

Has anyone ever seen or used those devices that stores up some oil pressure, so that when you start the car, you can release that into the system for a shot of oil? I always wanted to use one of those.

Having said that, on any oil cooler, it's a great idea to use a thermostat. Same on a trans cooler (at least for street duty)