I built the Hankinson 14 foot drifter a few years ago. I liked the clean internals with no ribs or raised floors to lose stuff under. Beautiful boat. I used 1/4" UHMW on the bottom and silicon bronze screws throughout. I fished this in the Sky, Skagit, Hoh and a few other OlyPen rivers and banged a few rocks. Boat performed ok. My complaints would be these.
1) The boat was so light it did not track well.
2) The clear finish I chose was way too much work to keep up.
3) The 48" wide bottom was just not wide enough to get up on a nice plane and row plugs in faster water with ease.

I sold the woodie and bought a 16x54 Willie after rowing a friends boat. There is an undeniable difference in ease of rowing and stability.

I can send you some pic's if interested. I still haven't geeked up enough to figure out how to post them here.