I am also in Raleigh and just bought my 4Runner about 2 months ago with 157,xxx miles on it.
Runs like a top, all I have needed to do mechanically to it is replace all the fluids with synthetic and I need to change the water pump because it is the original water pump with almost 160K miles on it.
But other than that the original owner seemed to take very good care of it so I have no problem with it having almost 160,000 miles on it.
I don't put that many miles per year my vehicle so with less than 8,000 miles a year on average I figure I should get at least 12-15 more years out of it maybe much longer before needing any serious engine work.
One thing I have found out is that living in Raleigh is hard on your gas mileage because if you aren't going UP hill only means your going down getting ready to go up, no flat driving around here at all.
I had to drive out to Charlotte to find my 4Runner, everything I saw anywhere near here was driven hard and put away wet and absolutely nothing looked worth buying unless it was at Carmax with a starting price of $13K.
I went and looked at dozens of 4Runners at dealerships and a couple from private parties and all were dead stock, high miles, beaten to hell and anything less than 8K wasn't even worth looking at.
I saw one at a dealership on Capital Blvd that they wanted $7,900 for, had over 150K, was a 2000 "looked" good in the online photo but I got there and I literally had to laugh, the thing was destroyed inside and out, tires bald not even legal they were so bad, was so far out of alignment I could see it as I walked up to it and the interior looked like they drove into Africa and let it sit there for a year or two with the doors open.
Needless to say it was very discouraging to hunt for 4runners in this area.
My advise unless you already know of one you are interested in, is to look only for private party to buy from and look on craigslist and autotrader etc and look in EVERY area in as far away as you are willing to travel to look at it.
That is how I found mine, I widened my search to the entire state and even into Virginia and South Carolina and was actually even looking at some vehicles on the West Coast in Oregon.
Found one in Charlotte at about 2:30am he had just put it up for sale about 4-5 hours earlier, I emailed him immediately gave him my phone number he called about 7am, I said I will be there in Charlotte by noon with cash in hand. Got there and the 4Runner was best I had seen by far at any price, checked it out, drove it about 30 minutes, put in 4 wheel drive a few times, asked him what is bottom dollar was he said $7,700 I said sold didn't even try to haggle at all.