88' Monte Question

Hey I'm new to these threads, and I was wondering if someone could help me out with a question I've got.
I'm checking out this 1988 Monte Carlo SS, it's got all original parts, under 30k miles, and has been garaged for most of it's life. I'm wondering if this would be a sign I have to change out all the parts, seeing as they are 22 years old, but since it has been garaged and has "under 30k miles", I'm not too sure. Any thoughts? What kind of price tag would you put on this? Thanks.

Just my opinion, do the regular maintenance. Give it a tune-up. Drive it, and see what you think. I could go into detail about changing the oil, all filters, lube job, where applicable. As far as testing, there's a lot you could do.

If all the parts are old/original, it is a very good idea to do some basic maintenance.

Rubber parts and fluids do wear out/deteriorate over time. It's a great idea to change the coolant and all radiator and heater hoses and wiper blades.

Change the fan belts, oil and filter, fuel filter and rubber fuel line components.

Flush the old brake fluid and take a close look at the flex brake hoses for cracking and damage. Replace if necessary.

Changing the transmission filter and fluid is a good idea, as is checking the differential fluid level, plug wires, and distributor cap and rotor.

You may need new tires if the old ones are very old and hard/cracked.