That no doubt would be the best engine.
I am looking for something more modest. I found a 350TBI from a early 90's police vehicle, with 100,000 miles on it. The price is about $400-500. It probably has more idle time on it (don't know how that affected the engine) but on the other hand, more frequent oil changes.
I had 155,000 on my old motor, so I am getting about 55,000 miles for about $1,000, considering the install price. Hey, I value frugality over performance, although I will always choose a V8.