I have the same car as you with 181K on it. About 6 months ago I replaced all of my vacuum hoses with silicone form a company called Hose Techniques.

The job was easy, and as others have said, just make sure you replace one hose at a time. Take off the old one (remembering which way it is routed) and cut the new silicone line to the same length. All of my new silicone lines fit so snugly on their fittings that no clamps were needed. I chose red hoses, which really dresses up the old engine compartment. If you chose colored hoses, they'll get smudged with grease during your install. To clean, just take a cloth soaked with rubbing alcohol or glass cleaner.

Good luck,
Chris