After calling Mad River and coming up empty I thought I'd ask the masses. Trying to figure out what canoe I just bought. S/N is MADE1122M83k. By the E, I assume explorer, the 83 the year but material? Very thin, less than 1/8 between the gunwales(towards the ends 1/16 max.) You can see the cloth weave, gray inside, and you can see the weave thru the outer covering if you look close. Foam closed ends. The canoe skin is very thin and flexible. Thanks in advance.