I've got 1600lbs in the back, 800 in the ski locker and more than 2000 in lead mostly in the front of the boat. So, a total of roughly 4500lbs. As far as prop, I'm not sure. I do know though that I changed props 2 years ago and went with a different pitch which definitely helps the boat plane off faster.
And yes, please reach out to your brother to see if he's interested. And you yourself, obviously, are welcome anytime! Just lemme know .........