Ahoy Jay. Using the Thames measurement and metric tonnes (probably what is needed in Tahiti), the light load is 10,000 liters and the gross load about 13,500 liters. The drawings needed are available readily. The book "Colin Archer and the seaworthy Double-ended" by John Leather pages 145,146, & 147 show all that is needed. I can not send those pictures from here, but maybe Gary B can. I know he has that book. Good luck. Dave