Hello, again.
Not sure of your name - first name would be helpful.
Anyway, as far as whether to buy a high time or low time engine, it really is pretty much a crap shoot.
I used to think the go was to buy a plane with a high time engine/s and replace with factory reman/s. Since doing that with my Baron in 1996, and getting one factory reman that had a number of bad exhaust valves 500 hours later, I don't think the factory has it right. Maybe they do now - or maybe it's as much of a crap shoot as it was then.
Anyway, if I were to buy a plane with high time engine/s now, I'd have a boutique shop overhaul them. A shop that paid attention to tolerances and measured well.
If you were brought up on piston engine operations more than five years ago, I'll suggest you read John Deakin's AVWEB columns about the better ways to operate piston engines. These ways are not really new - many of the parameters were noted in the operations of the big radials on the Super Connies and DC-7s.
See:
http://tinyurl.com/39rspq
And if you're seriously inetersted in getting the most of your engines, you'll benefit by taking this course - available on-line:
http://www.advancedpilot.com/
Anything more, head over to the Beech list!
Best - Ron Koyich