I grew up 15 miles from Hazleton and fished the Upper Delaware, West Branch, and Lehigh in the gorge a lot before I left PA at age 25 back in 1978. A drift boat would be a great fishing craft on either the Delaware or the Lehigh. Although I spent a lot of time walking the old RR grade on the west side of the Lehigh between Lehigh Tannery and Jim Thorpe, it would have been a whole lot nicer to have a drift boat to access this area.
You will find the drift boat to be very nice to take through the many rapids (yes, even the class III's found in this stretch). Likewise, a drift boat on the Upper Delaware mainstem, west branch, or east branch would have made a lot more water available.