I know for a fact that they will mail you a set of directions. I got my Donzi without directions. I think that they charge about $5.00 the contact section on their web page will give a number to call.
www.dumasproducts.com they also have tech assistance with their boats aswell. I have called to ask about my Donzi, some of the Dumas directions are not so good. For power, a 700BB might be a bit high on the RPMs, I would gear them down quite a bit, I have my Donzi runnig a couple of 800s on a 3:1 reduction on 14 cells, and it really moves. I would look at some Johnson 8200 motors, way more torque, lower RPM and more efficient. My boat wieghs in at about 25 lbs, adn I have no problem pushing her up out of the water with about a 25-45 min runtime depending on the amount of throttle. The Dauntless is similar size wise and the underside of the hulls have similar designs(semi displacemt hulls)