I've almost been there, Dr. Don...even in a 16 ft. wide V aluminum boat.

Total Weights:
23 bags of gypsum at 40 lbs. per bag = 920 lbs.
My 6'5" (and only 18 y/o) cousin = 310 lbs.
Me, the runt of the family, tipping the scales at about 230 lbs.

Grand total was 1460 pounds plus trolling motor/battery. We'll call it 1500. Not my brightest idea. We had about 3" clearance to the water. Thankfully we had a pier to load from and not a steep bank. There would no "sliding the boat" anyhow. Somehow, we stayed dry despite the stupidity. How long did the wife and kids laugh at you?

"Only after sorrow's hand has bowed your head will life become truly real to you; then you will acquire the noble spirituality which intensifies the reality of life. I go to an all-powerful God. Beyond that I have no knowledge--no fear--only faith."