At 6 ft long your 380 will not have the power this model needs I would sagest at lest 600's you could run 700 or 800 motors I would gear them at 2-3:1. Yes Pack the stern tubs I use auto wheel bearing grease, water proof, High presser, stays where you put it, last forever. If you would like to see some of my 103 boats go to www.jsgill.net.net