What is the soft cap on his salary? Is it as much as 30k or more like 20-25k? I like this plan and I got him for very cheap considering the well spread skills so I definitely want to train him.
for sf the salary cap are pretty much messed up, and i personally think the number are estimated to high anyway.
And yopur second dude needs serious training in ID, you could lack a weakness in an scoring option more then in an defensiv option because you could design/choose your offense so that it weakness don't matter that much but defensivly you had to play what the opponent wants.
With that in my you could get trouble with your trainees, if this one reach 9 in ID the other dudes is maybe a bid overpowered there especially because he cann't switch to PF because he had the rebounding problem. Maybe you could focus more on guard training at the beginning, and then sell your second trainees(i would push all guards skill to 8 which should have an good effect on his selling price)