I can certainly see many of the points you're making here, but really the original poster needs to consider that this might be the best draftee he'll ever get in his entire Buzzerbeater career. Maybe he'll regret selling, and not training, and missing a chance to craft a home drafted player him into the cornerstone of his team. Maybe he'll regret not selling, and pocketing the cash, using it to buy players and work up divisions as fast as possible. But the fact that many teams never get a draftee this good should be recognized.
As far as training goes, it's actually easiest to get it going in low divisions, and easy to do secondary training. With all the bots, setting this guy at center and training IS/ID isn't a big deal. That gets more and more difficult as you progress in divisions. I'm currently training my PG in inside skills, and a SF, so I know the difficulty of balancing training and staying in a league. But devoting training time to significant secondary improvement is one way to a competitive advantage over your league mates.
In terms of his specific skills, I wouldn't worry too much about the low HA and PA. Those train very fast, and can be fixed this season.
Again for Mr. 495, you have to decide whether you want to sell or train. Then, if you want to train, decide if you want to take the long view, and go for a real SF (which will require a lot of out of position training), or a guard with some good IS (less out of position training here, but I'd still recommend some).