I would do his rebounding last, because rebounding counts toward his potential cap, no matter what position he is listed at. With just 6 potential, you will have to plan out his training very carefully, to avoid capping him before you are ready.
I'd start with OD, PA, IS, and then 1v1 on weeks where you have only 2 games.
Most important to decide on a final skill set that you want to work towards. It depends on what offense you want to be able to run though. Off the top of my head, something like
13/9/14/9/14/10 12/10/6/2 would be a solid player, though I haven't checked to see if that fits in 6 pot. Might be close to too much.