Thanks for the comments. It always helps to look at issues in a different way.
The mechanic did explain that the problem was a gasket in the lower engine. There isn’t a crack in the block. He said that GM installed a plastic gasket in the engine (3400) and they are a known weak spot as they break down with time. The metal replacements apparently outlast everything. He was surprised that it made it this far. He also said that labor costs could be over $1k and that I would be better off with a new car. I confirmed the parts and labor costs on the net, estimates went higher.
A rebuilt or replacement engine is a possibility but that’s more than I’m willing to put into it.
Due to the winter conditions, there aren’t a lot of cars of this age on the road year round. Winter really takes a toll. The car has other issues, the front bearing/hub assemblies needs to be replaced, brakes are due, transmission occasionally slips when cold (fluid level is fine), time for both new summer and winter tires, cabin heater related issues, fuel level sensor in the gas tank needs to be replaced, windshield has some small chips and due to winter extremes, it should be repaired or replaced. I’m sure there are other issues. We are planning on moving down the road. The car would have to pass an inspection to be licensed. Another concern.
It really is time for a new one. I found out last night that we can get a vehicle for dealer cost by way of a corporate discount.
It’s more about having to make a quick purchase without having the opportunity to overthink things.