Duffy, i'd guess your fish would be about 275+ lbs. You can see in the link below that Warsaws (i know yours was a Goliath) get to 120 lbs at just under 5 feet.
http://www.rodnreel.com/fishcharts/F....asp?FishID=39
I would guess at 6 ft, that you'd be dealing with a 275+ lb fish. Also, just by googling around a bit i found this:
"I measured him at 71” with a girth of 56”. If you apply the standard fish weight calculating formula of length X girth squared divided by 800 you get 278# or about the average size of an adult Jewfish. My measurements may have been off by a few inches since I measured him hanging over the side of the boat. Any you cut it though, he was one big fish."
That's about the same size as yours and 278 lbs. so maybe yours was a bit bigger, maybe pushing 300 lbs. A massive fish and well done to you guys. I don't think it looks like a 400 lber, but who cares. it's an amazing catch