Sooo hard to say. A lot depends on the general condition of the car (its value) and how much you like it.
I still suspect that the turbo oil seal is the source of your "puff", and nowhere near a terminal point. If you cure your coolant "seep" and are still losing coolant I'll change my opinion here.

If the car is nice, fix it. In some cases used parts will be fine, in others the cost of labor justifies new parts. Suspension parts can be in good condition (based on your being in a cooler climate) and only need a joint or bushing here and there, strut replacement is a DIY except for the wheel alignment after.

Big thing with a car of your advancing mileage is that the resale/value isn't that strong. If it were wrecked, you'll be lucky to get $4k for the car. That becomes important when you are looking at a transmission etc., replacement is less than repairing the car.

I've found that maintenance on an older ride needs to be kept up, the result of letting it go is that all of a sudden you find yourself in a position where there is so much maintenance due that it isn't worth it. The junkyards are full of cars that were just so far behind in maintenance that one more straw broke the camel's back, and it isn't worth repairing.

Look at what really needs to be done, whether a good independent can make it right with new & used parts, and what the car is worth completed. It isn't that rare a car unless it has heated leather and LSD and is in excellent condition.

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Gone to the dark side

- Jeff