I am not sure what to do - do you think he would be a better small forward ( I think so) or a shooting guard. I need a good small forward as my sf is getting old at 33. And I would love to have some training routine that you thought was good - I was thinking of starting with js because that would apply to both sg and sf. I am really not sure "exactly" what skills make a good sf.
a sf could use nearly all skills, the must important ones are both defences in my eyes. JS are also very good. Because of the huge amount of skills a SF needs, i like to concentrate on one specific offense, so i would give him JR + JS or IS + JS.
Passing, Rebounding could also lead to good results, and driving is good to train because it is possible for SF + PF and trains alot IS and JS. So in the end you need nearly everything except blocking.
The easiest way to train a SF in my eyes, is to buy a small center with good "b-skills" and make guard training, or a big guard and train him inside.