At 6'4", 240lbs, you've got enough weight and leverage to keep the bows up.
The biggest problem you'll have is getting it to power up in lighter air. That mast is a telephone pole, and there isn't much control of the flex on it. You'll want to upgrade to a 16:1 downhaul if it hasn't been done already. The mast is also very heavy, which makes it tough to right singlehanded, but once again you've got weight and leverage on your side. I'm 6'2", and was about 165lbs when I had mine, and it was tough even with a water bucket. I'd run more purchase on the mainsheet too. I think mine was 8:1, just not enough for me with that stiff mast.
I've always wanted to find a cheap one with a trashed rig. Hack the sterns off to F16 length, update the boards, and put a F16 rig on it. I loved the way that boat cut through the water.