I'm a fan of driftboats, but for what you want to do, there may be a better option. Pretty much every manyfacturer is making a "skiff" and they have really caught on on the Henrey's fork and other places. You can put a short shafted motor on them which is really nice, they also track better under power. Here is one from Ro boats:
The drawbacks to a traditional driftboat are:
1. Won't track well with a motor
2. Catch the wind like a sail
3. Noisy
4. Need a long shafted motor
I feel like the new breed of skiffs is a good compromise, though not as whitewater capable.