Because the temp gauge doesn't work and it has overheated at least twice my guess is the head gasket is damaged.
I'm also seeing coolant leaking from the bottom of the engine along with oil.
Engine still seems to run fine so I'm continuing to monitor. I haven't wheeled it recently and don't drive it far so I'll just keep an eye on it. It isn't really a major problem currently and since its a wheeling rig not a daily driver it is not a huge concern. Fun of owning an old vehicle.