Well the possibility of bulding such a Player was not part of the question.
I guess my interpretation was a build that was possible, otherwise this would be my guy:
20/20
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As for your build, I still think the height problem factor would be too much to overcome even with 7.99 in many skills to start. To get 12 SBing pops on a 7' player takes long enough, but since your player would have to be in the 6'7"-6'8" range in my opinion to get the guard skills to what you suggested, it would take three times longer. If you ever find a player that's suitable I encourage you to go for it though, because he would be a beast!
Murray/Harris/MPJ/Grant/Jokic - 2020 NBA Champs