Yep, pretty close. I usually don't pack the 800 very tight. I'd guess 1800 or so total. The rub rail is usually just under the water line at the back!
My boat came with the factory tank... but one of the fittings in it pulled loose & i haven't got it fixed yet. It probably only holds 200lbs with the seat down anyway.
You gotta be very careful (& slow) driving the boat like that. And don't even attempt to turn right very sharp.