Originally Posted by spinnaker

If you want a quick tour then consider the Montour Trail. IMHO it is every bit as good as the GAP, if you leave out Ohiopyle.

You could easily ride to Boston and back in 2 days. This would minimize your travel time (train / car) .

Another thing to consider is to drive to Connelsville and park there. Except for a visit to the city (sounds like that is out for you anyway) things don't really get good till you get to Connelsville anyway. Coming back you will be arriving at the station at a much more hospitable time.